Just some pretty nice AM3 boards:
ASUS Crosshair IV Extreme $299.99
MSI 890FXA-GD70 $199.99
ASRock 890FX DELUXE3 $179.99
GIGABYTE GA-890FXA-UD5 $179.99
ASUS M4A89TD PRO/USB3$169.99
But you might as well wait a little bit for the AM3+ motherboards and a bulldozer...
bulldozer btw is just a code name...and is going to be sold sometime 1st quarter of this year...