Galiron

Im extremely anxious for Guild Wars 2's release, as i've been a gw fan forever. But i'm stuck with this laptop that will most likely not be able to run GW2. My plan to stay cheep is to get this desktop: http://www.bestbuy.com/site/HP+-+Pavilion+Desktop+-+4GB+Memory+-+500GB+Hard+Drive/5563034.p?id=1218661380542&skuId=5563034 Because it seems cheep and effective. When i get it, i want to put the GeForce GT 430 graphics card into it, to give it a super graphics/ ram boost. FYI i am really handicapped when it comes to computer specs and stuff....seems like a foreign language to me :P. I just want to know if this will work, or if it's even the right cheep way? Are there any alternatives??