WoW does not work very well with SLi so unless you are planning on playing other games on this system that will benefit from it I would drop 1 GTX 260. Also even if you do go with a dual GPU setup a good 750w single 12v rail PSU will be more than sufficient. The 1k PSU would be more inline for a triple GPU setup. Other than that there's not too many corners to cut. According to Sina here Multiboxing Benchmark Full Review - Doghouse Systems Multiboxing Solution there is only a small difference from 6 gig and 12gig of ram. Personally I went straight to the 12gigs on my system. A cheap 2nd gen SSD and 7.5k HDD would give you better performance as well as more storage space and come out to around the same cost as the Raptor HDD. After that there isn't much to change, just no external sound card and a cheaper tower if you HAD to cut some more cost