Hi all, Well I haven't gamed much since when I was in middle school, so I'm a bit out of the loop. Now I have a lot more free time than I have for the past few years, so I'm looking to get into it again. I thought my computer would be getting too old to play modern games, but it runs Bioshock decently on 1280x1024 with graphics maxed out. I'd still like to think about upgrading though to have something more recent. So I came to ask you fine people what should be the next thing I buy in order to further my gaming experience? Processor, GPU, higher-resolution monitor... or should I save up and build a new rig all at once? Here are my stats: Athlon 64 X2 4400+ (AM2 socket) 2 GB DDR2 RAM 256MB NVidia 7900 GS (stock from Dell, so not overclocked or anything that I know of) working 1280x1024 LCD monitor Cheapo stock power supply ...Anything else I should add? Thanks in advance for the help!