Just another thought, this 9800 non pro for $160 is built on the 9800PRO pcb and has the 9800PRO heatsink and BGA ram so with some ramsinks it could probably be overclocked to 9800PRO speeds, just a thought.
http://www.newegg.com/app/viewproductdesc.asp?description=14-131-406&DEPA=1