Only thing i'd consider is going with a smaller drive. You can always create logical partitions etc as well. I know that some of the new 150G SATA's are blindingly fast and actually do help gameplay (was a write up somewhere recently). I've gone to the 3 drive architecture with a system drive, data drive and archive/backup/storage drive (using Acronos). I also have dual external drives so i'm beyond overkill...but a 2x150 (or even smaller) with a 500G "data" drive wouldn't be a bad idea with that build IMO.