Should be quite interesting to see what the games look like and the extra abilities are like 6 months from now.
This is the problem Microsoft have though : in 6 months time, PS3 may will in theory be available (or near as dammit). With the extra grunt that's bound to have (regardless of hype), that second generation of graphics on 360 will at best be comparable...first to market is not the guaranteed winner some people seem to think it is.
But as ever, I'll reserve judgement until I see more than the odd couple of games that I want on the console(s).