k heres the deal
ALl in NZ dollars
DFI Lanparty UT Ultra-D $197
AMD OPteron 165 -$534
eVGA 7900 GT -$510
G.SKill 2x1gb Dual Channel, Case Latency 2.5 $280
Thats about $1500 but thats with the ram so you take the ram u planned on buying and add w/e is necessary so its not that far off and its a really good rig.