funny, my first choice psu was an evga 850w G2 but the price at my local computer store was recently hiked up to $200 so I went with the silverstone to keep costs down. hopefully I can get them to pricematch newegg. As for the 5820k vs 5930k, I happen to think the extra 12 PCI-E lanes is worth it for future expandability.
also 128gb is plenty of space for an OS and a few games.