Unfornatley I am not in the states but I have seen some quite good deals for the memory at uk stores like DAB's and the uk equiv of new egg

In terms of OS I am Running win7 x64 Ulitmate with PP2012 x64

Desktop : AMD FX4100 , GT-630 1GB, 4x BD-RE , AOC e2343 23in LED Monitor , 1TB External (120mb/s write speed)(stores my all poser stuff and photo's from camera) and 1TB internal HDD

P2010 , P2012 , P2014 , Reality 3 , Max 2014 , Lightwave 11 , Showcase 2014 

Location : Rainy UK

Website @ www.steadyrabbitdesign.freezoy.com (New site still under construction) & Dev art : Tim2700