Almost Done! Needing Power Supply Advice

[AutoOrdnance]

OK.. I went with.

Thermaltake Level 10 GT Case
i7-2600k
ASRock Z68 Extreme7 Gen3
240GB OCZ Vertex 3 MAX IOPS SSD
1TB WD Caviar
PLEXTOR BDR/DVDR
Corsair Vengeance 16GB DDR3 1600
2x MSI R6950 2GB FROZR III PE/OC
Dell UltraSharp U2412M (going to get 2x more if I like it when it gets here)
Noctua NH-D14 Heatsink

How much power should I be getting? Id like 20% more than required to comfortably run this system.. Any suggestions on brand? I've been looking at the NZXT HALE90..

Thanks for any input...

[RickyTick]

My next power supply will be either a Corsair AX750 or AX850, Seasonic X750 or X850, or the Antec HCP750 or HCP850.