Which OCZ Ram for new system

I'm shopping for ram for a new build I am planning. Looking at getting a P5B with an E6600. I am thinking about PC800 and see that there are two very similar parts listed on Zip Zoom Fly.

Can someone tell me what the difference is between these two? Also which set would you recommend.

http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=85237

http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=85264

Do you plan on overclocking? The Revision 2 is supposed to be slightly better than the original for that. But neither have D9 chips so you probably wont get over 1ghz. The cheaper platinum will be fine for reaching 800mhz and you could probably lower the timing from 4-5-4-15 to 4-4-4-15 just like the revision 2 even if it took a little extra voltage.

PC6400 EL Platinum Rev 1.0 4.0-5-4-15 @ 2.1V
Elpida IC's …

PC6400 EL Platinum Rev 2.0 4.0-4-4-15 @ 1.9 ~ 2.1V
Promos IC's …

I got a hold of some of the 4 5 4 stuff and it does 450@444,15 1:1.

Thanks for the feedback. I realized that they don't have D9's after I posted. I will be oc'ing so I may want to do a little more research.

How are these?

http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=85025-20

These should be d9's and are cheaper than what you linked to.