??? High Power Absolute 1000W enough for this system ???

Hi guys

I am just about to buy a new PSU; High Power Absolute 1000W

i7 920 @ 4GHz (1.35vcore)
Asus P6T SE
2 x Sapphire 5870 CROSSFIRE
Corsair 1600MHz 3 x 2 GB top 6 GB

I am niggling because I do not want to see any power problem.
And, best important question, what about 12V channels with High Power Absolute 1000W? Does it get along with two 5870 and overclocked i7 920?

DC Output: +3.3V, +5V+, +12V1, +12V2, +12V3, +12V4, -12V, +5VSB
Max Output Current: 30A, 28A, 20A, 20A, 30A, 30A, 0.8A, 3.0A

This outputs are ok with two 5870 and overclocked i7 920?

Sorry for poor english Thanks very much in advance.

i wouldn't use a psu from any manufacturer with the words: high power, as its brand name, stick to seasonic, corsair or any of the others recommended by the guys, i would also suggest 850W would easily handle that system.