Power issue

Ok this has gotten my mind in a tight jam, I want to know if i ran 2 8800 Gtx's SLI on a 30 inch Dell Wfp HC along with a intel core 2 duo E6850 will increase my eletric bill by a LOT because my rent is pretty high.

if anyone has basically this type of rig or higher can you shed some light on how high your Electric bill comes too??

I'm just curious if my electricity bill will be high because i know to run this it requires a lot of power and i have a 1 KW PSU atm but will my eletricity bill be high if im on my computer for like 5 hours a day ( example )

I need a example :(

Bump

Come on guys

How do i check this =S?

& Thanks.

i have a Dell 24in and it doesnt use that much power...just leave it off when ur not using it