i am buying what i think is an uber machine for R14 000
geforce 8800 GTS 640MB
2x 320GB SATA H/D
I would assume that your uber machine was bought at dealer-pricing? I doubt that PC could be bought retail for 14K. Also, unless you're gaming at resolutions higher than standard LCD's can go, the 640Mb 8800GTS is no better than a 320Mb.
Outlaw69, buying from the cheap US e-tailers may mean some savings, but if there are hardware faults, you have to factor in the time and cost of shipping parts back.