Which two fingers? Kinda need ring, middle, and pointer for the WASD. Pinky finger isn't needed.
I have found that Age of Conan really just needs a decent video card and 2G Ram. As a test I installed it on my ION powered netbook. Not fantastic, but playable. Weaker cpu than pretty much any laptop you can buy, but a decent video card. Requirements for World of Warcraft are much lighter. Either way - I think anything other than an Intel gpu should work.
Or just stick with xbox 360 games. Probably easier, but I'm not a console gamer and I'd get bored quick.