My computer was pretty high end 3 years ago, I remember the X2 4800+ chip I bought cost 680$ and was the single most expensive part of the machine. The hold up for me is, in order to upgrade at all, I have to replace a large proportion of my hardware, mainboard, CPU, RAM, PSU, Video Card, etc. I can't just do it a piece at a time really, so I'm having to put off the whole upgrade. I do think with 2GB of RAM and a 7950 GT 512 I'll be able to run the game tolerably, but I'm really not expecting anything spectacular at all. We'll see what happens, but yeah my machine needs to be replaced/upgraded to a very high degree.