RAM bottleneck?

On my gaming PC, I just ordered a Phenom 955. My rig will look like this in a couple days:

Phenom II X4 955 Black Edition 3.2 Ghz quad core
8 GB DDR2 800 RAM
Geforce 260 x2 SLI

My question is about the RAM. 800 Mhz is the fastest it supports. Will this bottleneck the performance of my PC, or is it a big deal at all right now?

 

It's not a big deal at all. When you have a moment, go to Tom's Hardware and look at their comparison benchmarks of identical machines, just with different speeds of RAM... The speed makes no noticeable difference in how your game plays. The amount does, but not the speed.

 

Thank you for the reply. Additional question: is there anything about my older motherboard that would cause performance problems? http://www.newegg.com/Product/Product.aspx?Item=N82E16813131013