Nah, DDR3 is only good for an i7 build, because Nehalem was designed for that kind of memory. The P5Q Pro supports Crossfire as well, stick with DDR2. There is only like a 2% performance difference between DDR2 and DDR3 with Core 2 Duo.
thank you for the reminder just added that to cart ..
final question ...is that heatsink decent for Ocing or should i go with the ZALMAN CNPS9500 or the Rosewill RCX-Z775?