please

@ Targa
I like your setup . That Prescott does run hot as others have said, but they OC better too . The Zalman is a good choice. Good case airflow will be very beneficial to you.

As for your timings, I think the pdf document from Corsair was a bit dated and your new RAM should run at 3-3-3-8. They may have an SPD of 3-4-4-8, but you can change the timings in BIOS with no problem. Memory companies are always changing specs. Sometimes they SPD things higher than what they can do just to be safe and to insure that they work in every board out of the box. Not everyone has a P4P800 E-Deluxe . You may be able to squeeze 2.5-3-3-7 out of them .

You should be able to OC a little bit. ASUS has a decent BIOS for OCing. After you get up and running stable for a bit, try some of the OCing as mentioned in the manual.

If you need a few hints or links for some BIOS settings or OCing, just ask.