Help - Memory/System Upgrade - PC 6400 or PC 8500 on 780i w/ E8400

[huron]

I've got a quick question for everyone. I did try to figure this out for myself, but trusted that some of you out there might have some experience with it.

I'm building a computer for my father-in-law and ma switching out a lot of my components and getting new ones for myself.

I've purchased a new E8400, a new 780i (MSI - yes, I plan to SLI in the near future), a new 8800GTS, and even a Tuniq Tower so I can overclock the E8400.

My question is this: (please keep in mind that I want 2x2GB sticks)

What RAM should I get - I'm down to Crucial or Corsair ? (supported by the mobo manufacturer)

PC 6400

CORSAIR XMS2 DHX 4GB(2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) - 4-4-4-12

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145194

Crucial Ballistix 4GB(2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) - 4-4-4-12

http://www.newegg.com/Product/Product.aspx?Item=N82E16820148183

OR

PC 8500

CORSAIR DOMINATOR 4GB(2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500)

http://www.newegg.com/Product/Product.aspx?Item=N82E16820145197

I was thinking the smart thing to do would be to get the Corsair PC 6400 - especially with the cheap price, but I have had good experience with Crucial. Then I was thinking the Corsair PC 8500 would be great, and it's a decent price and includes the memory cooler.

I was wondering will I ever need the extra speed of the PC 8500, or will the PC 6400 do?

Please let me know what you think.

 

[doubletake33]

for me kick the XMS2 to the curb! now it's down to the Ballistix and Dominator.

from there it's a toss up and a matter of $70 bucks possibly!

 

[huron]

Ok...just Dominator vs Ballistix.

Now the questing comes down to do I need PC 8500, or will the PC 6400 be enough. Plus the Dominator comes with the Memory Cooling Fan.

 

[huron]

Alright...adding another question to the mix.

I was down to the Dominator vs the Ballistix, but now I want to add the OCZ Reaper (PC 8500 - only $110 for 4GB at zipzoomfly.com).

Anyone? Do I go for the 6400, or the 8500. Do I got Dominator or Reaper if I go 8500?

Thanks again.

 

[huron]

Will I even notice a difference between DDR2 800 or DDR2 1066? Either way, there are fantastic deals on both sets of 4GB kits.

Any help would be nice.

 

[phuzed]

I'm quite interested in this myself.. I can't decide if I want to go with the 800 or 1066 RAM.

What should one choose if OC the CPU is gunna happen?

and

Whats the difference in performance between the 2?