help choosing right UPS

[RombieFitch1]

i'm trying to choose the right ups for my gaming rig. here are my specs: intel core i7 950, asus rampage formula III, CORSAIR DOMINATOR GT 6GB 2000 (6gb), 1000 watt ps, two evga gtx 570 sli, one ssd 128gb, two western digital 1tb black edition hard drive, 27inch asus monitor.. what should i get that would give me 10 minutes of backup time? thank you

 

[iPwn]

This should do just fine for a ten minute backup while running idle:
APC Power Saving Back-UPS 750VA, 10 outlet, 120V

 

[RombieFitch1]

thank you. i just did a quik reading with my meter and it pulls 550 in max load.. that system only supports 450 watts

 

[iPwn]

Oops!

This one will give you about 10 minutes on max load:
Power Saving Back-UPS Pro 1300

Well, 8 1/2 minutes at least.