Cool.. I just wanted to make sure your AM2/3 board supported quad, which it does.
16gb of DDR2 xxx? speed? That's alot of ram to dump for DDR3. Ofcourse DDR3 is going to be faster, but what are your system specs for everything else? What do you do on the PC. Game, or do you like to have 50 IExplorer windows open, movies/decoding, or music.
Where would the bottleneck be is what I'm trying to determine for you. 16gb of DDR3 is pretty pricey considering your motherboard