2 gpu psu question

[Humboldt]

What is the minimum psu wattage you'd recommend for a dual gpu setup with a GTX 460 (450W min) and GTX 650 (400W min)?

Not sure if I should I should combine those 2 minimums w/ a 1000W psu or if there's anything else to consider.
Not much else in the system other than a DVD burner.

Thanks

[RaisinCain]

I would just throw a 750 in there or a 1000 if you can get it for a good price.