I've decided to hold off building my next system until Nehalem. Between the lack of games that don't overpower my X2 system (other than Crysis, which I've already beaten twice), budget, and lack of upgradability, later this year is looking like a better time to build.
On one hand I feel sorry for AMD, but there's not much appeal for enthusiasts when even the latest Phenom doesn't beat the 6400+...