Setting up 2 Acer t272 HUL touch screen Monitors with Windows 8.1 Pro

Short answer: Almost no modern single card has 2 HDMI outputs, meaning you'll most likely need to buy two (a pair)...which pair you determine is completely up to you, though I can maybe help...

Long answer: So, in choosing a video card (or any build, really), there are some steps that you have to go through. First is the obvious choice between desktop (pros; price, capability) or laptop (pros; portability) - as you're choosing two very fine monitors, I would certainly suggest against a laptop. Second, do you feel comfortable in building your own? - if you can, you can customize it wonderfully to fit your exact needs, avoid manufacturer bloat-ware, and reduce the price. Otherwise, store-bought is fine, as long as you shop smart (generally stay away from 'super brand name' like Alienware, Macintosh, etc.).

Moving on, you likely should (probably not required, but suggested) make a decision based on the CPU - which generally will determine the motherboard(mobo) and graphics card (GPU) - the question is, which? - ATI or Intel. This generally doesn't limit which GPU you buy, though with an ATI CPU, you'd usually want a Radeon card - where Intel usually determines a Nvidia(GTX) card. Personally, I'd go with Intel, as they are generally more user friendly and have higher benchmarks. If you fool around enough with an ATI CPU or GPU, you can get higher benchmarks, but that of course comes with a risk...but that's all up to personal preference and a LOT of debate.

Down to the GPU, you'll want to buy something reasonably modern, which any modern card requires a PCI-E 3.0 slot...make sure whatever mobo you choose has at least two of these slots. Unfortunately, almost all modern cards have 2x DVI, 1x Display Port, and only 1x HDMI - I have found only one GPU from each core-manufacturer that has two HDMI outputs, but both of them are budget cards, coming from card manufacturers that I personally don't particularly trust: Zotac 650(GTX) and VisionTec 7750(Radeon) ...as stated, I personally would not suggest either of these, particularly for a new/very-modern system, but otherwise you're most likely going to have to consider two cards (in SLI or Crossfire) to meet your requirement of 2x HDMI. You could stick with one card and theoretically try buying a DVI or Display Port adapter for the second HDMI, but that will no doubt complicate or 'dirty up' a signal that you'd likely want as clean as possible for the touch sensitive monitor.

Assuming you're buying 2 cards (or one, and trying an adapter), there's a huge plethora of cards out there, all with various advantages and disadvantages, suiting different needs. Now, I'm a gamer, and have two GTX 560's (no longer available) in my relatively old system, and they're suiting me just fine...but if I were to buy/build a system today, I'd get two GTX 760's - they are a great middle ground (imho) between cost and performance, which will certainly supply you with your 2x HDMI, as well as being able to handle just about anything you throw at them for the next several years. I should point out though that a lot of this is based on my personal preference, and you'll likely get many alternatives depending on where you ask...hope I helped though.

Sorry for the wall of text, and feel free to ask anything else... (Edit: It might help me help you, if you're wanting to use a current relatively-new system that you already own, if I knew your systems specs)

I thought some online stores (newegg.com, tigerdirect.com) had a 'build your own' option, where they walked you through a PC build and put it together themselves, then shipped it to you. I'd certainly suggest that, as it would be pretty much free of most un-necessary software, and it would only cost a little bit more than building it yourself, but for the life of me I can't find it now...maybe they stopped doing it?

Otherwise, if you definitely aren't up for building your own, you can certainly buy a PC off the shelf, but you'd have to make absolutely sure what you're getting - spend too little, and you may be unknowingly restricting yourself, but spend too much, and you might be wasting money on things you simply would never need. I can only suggest that you do as much research as possible, and answer that all-important quetion; 'What are my plans for this computer?' ...personally, not sure why anyone would need to buy 2 touchscreen monitors, but I'm not here to judge...

Where to buy - you can certainly browse Acer's lineup of desktops here (US link), or go to the countless retail tech industries such as Best Buy, or even browse the online retailers listed above (personally prefer newegg), but you'd really need to be knowledgable of what exactly your getting, and even then I seriously doubt you'd find a computer that would meet your specific request of 2x HDMI. Theoretically, you could buy a computer with decent video card in it, find out what that video card is, and buy another of the same variety, but there are a lot of variables to consider when doing this:

1. Is the card still available? - if the desktop is old enough, it may not be.
2. Can I power it? - an off-the-shelf desktop is likely designed around that particular build, so you most likely won't have a decent enough Power Supply to power a second card.
3. Will it fit in the motherboard? Any PCI-E slot will do, but if it's a modern card, it really should be a 3.0 - and the motherboard you end up getting might only have 1 slot that will likely already be filled with the current card.
4. etc, etc, etc.

Yes, I build custom PC's, but only for me and my friends, with whom I'm very familiar. As I don't know anything about you or what you plan to do with this machine, it is very hard for me to properly guide you (it's kinda like you asking a stranger what car you should buy...they'd have absolutely no idea - and to even begin, they'd need to know all sorts of specific information, and that's assuming they're even willing). Buying a monitor is important, but it usually isn't the first thing you buy, so you can reduce complications...such as, here we are, trying to come up with a 2x HDMI PC.

Anyways, we're honestly getting a bit off topic here, as this is a monitor forum. If you'd like some more help, I might try asking in the Desktop forum here on Acers site, or there are plenty of other forums where there are no-doubt more people, likely more skilled than I, who could help you...good luck.