You can only answer that if you figure out how much you are willing to spend. If $200 is about it, the 9800Pro now is a safe bet. You can't beat it and eventually 9800 Pro's will be gone. Then again, if you are willing to spend $400+ then waiting isn't bad either. Considering your's current video card, a R9800pro or even R9600pro would be a huge upgrade. What is the rest of your system like. No need to put a $400+ video card on a 1GHz Tbird, PIII, or a sdram Willamette P4 system.
ABIT IS7, P4 2.6C, 512MB Corsair TwinX PC3200LL, Radeon 9800 Pro, Santa Cruz, TruePower 430watt