Hey guys, i bought my HP Compaq desktop in, roughly, 2008 and I think it's about time i upgrade it. Right now I'm running windows vista 32-bit OS. Intel Pentium Dual CPU E2160 at 1.8ghz. 2gb ram. Here's a link with all other specifications. I just don't know too much about computer hardware and would like some advice on where to start. I'd like my computer to be able to play high definition videos flawlessly and run complex games, which it has trouble with right now. I'm not worried about upgrading my hard drive as I've owned this computer for 6 years and only filled the HDD half way (not to mention external storage is dirt cheap). My budget is around $250. Any and all input is greatly appreciated.