The reason I went with a DDR2 motherboard is because:
a. Had 8GB of DDR2 already
b. Extremely limited budget
I went with that particular MB because Newegg happened to have a sale on it for $30 (open box of course). That fit the budget.
For future reference, you can use any type of RAM listed with any combination of CPU (assuming it's compatible with that mobo) - however, 1066 DDR2 RAM will ONLY work if you use an AM3 processor.