I like the 360, admittedly I get almost every single console the day they drop. But if you have an HDTV it is a must have. Playing it on a 57in in HD w/ surround sound, wireless controllers and being able to park your ass on the couch is unbeatable. If you have a nice living room go for it. Plus upcoming games like chrome hounds, mass effect and especially
dark sector has me very psyched for the potential game library.
Oh yeah, one last thing. With the cost of graphics cards these days you might as well just pick up a 360 and ps3 and just use your computer for web browsing and productivity shit. You will save money. Seriously, I love online rpgs but I would rather have something more twitch based at this point and I think consoles lend better to that idea than your computer. Especially when communication is already included in consoles there is no more futzing around getting people on teamspeak or whatever. Plus I'm getting older w/ more responsiblities so justifying dropping a couple grand on a computer every year is getting harder and harder.
Thats my 360 cents