I've read all the comments so far, and I'll say this. It all boils down to which exclusive games you want to play more. Contrary to what has been said, the new 360 and PS3 slim models are about equal in terms of reliability and build quality. The issues with older 360s overheating has been fixed with the new chipset and lower power consumption.

The main difference I've noticed is that everyone I know has problems of some kind with the Playstation Network: slow downloads and installs, network problems, and unintuitive interface. If you aren't interested in playing online, then it probably isn't an issue.

However, if you have the system to run all the latest games on the PC, then I'd probably recommend just sticking with the computer and skipping the console.