Tang as long as you get PC-3200 going any faster than that won't affect performance because the ram will just clock itself down to PC-3200 speeds to match the FSB/HTT speed.
I mean if you have a board with 2ghz hypertransport and you don't lower the link multiplier and you overclock to say 2.1ghz then the board won't be stable and you won't be able to get to Windows.
Oh and also for the poster I believe the new cards are coming out this month/next month!!