REQ Info P800 Deluxe Memory / Configuration

Howdy -

I'm looking to invest in a P4 3 GHz chip and it looks like the ASUS
P800 Deluxe is the mobo to go with. It's been awhile since I've
overclocked a system -- (Pentium Pro days) -- so I need to know
something about memory.

In what I have read, the lower the memory latency, the better the
performance at a given bus speed. The Kingston HyperX DDR400
(KHX3200/512) has a 2-2-2-6-1 rating (@ 400 MHz), which seems faster
than the "recommended" Corsair CMX512-3500C2, which has a 2-3-3-7-T1
(?what is T1?) rating (@ 433 MHz).

(Short version of this question: 400 MHz 2-2-2-6-1 seems like it would
be faster than 433 MHz 2-3-3-7-1? Is this right? If not, why? Educate
me!)

I guess the essence of my question is that I want to maximize the
performance, but the HyperX chip is not on the "approved" list in the
ASUS literature. So...

1) WILL this HyperX chip work?
2) WOULD it be faster to go with the Corsair?

Any help would be appreciated.

Thanks!
Strange Brewer