I'm having a hard time making sure this mobo and memory are compatible.
Finalizing my build here and I've decided to go with this MOTHERBOARD:

GIGABYTE GA-P35-DS3L LGA 775 Intel P35 ATX Intel Motherboard - Retail
http://www.newegg.com/Product/Prod [...] 6813128059

And this Memory:
Crucial Ballistix Dual Channel 2048MB PC6400 DDR2 800MHz EPP Memory (2x 1024MB)
http://www.tigerdirect.com/applica [...] RANTY#tabs

I looked at the manufacturer's QVL ( http://www.gigabyte-usa.com/FileList...5-ds3l_1.0.pdf ) to compare the memory for the motherboard's Memory Standard which is DDR2 1066. Will the 800 cards I have selected above run efficiently on this motherboard? I'm assuming the 1066 is just the highest MHz the card can go. If I'm not mistaken the Crucial memory above is compatible but I just wanted to be sure.

Thanks in advance.

Yes they will run just fine. Even, if you picked up some 1066 modules you would not see the performance gain over the Crucial 800s.

Thanks for the reply, I took a leap of faith with my research and ordered them earlier but it's nice to have confirmation. Now the hard part, waiting on everything to arrive...