Graphics Thermaltake toughpower 750W Power Supply Be Enough for SLI with 8800GTX's?

I was needing to know if my 750 watt power supply will be enough to run 2 8800 GTX's on SLI? My PSU says these features but I wasn't sure if it meant any SLI setup.

Features: SLI, Cross-Fire, and Dual Core CPU ready
Protections: Over Current, Over Voltage, and Short-Circuit protection
Next generation four +12V rails(12V1, 12V2, 12V3, 12V4) supports high-end graphic card and PC system (combined loading of 48A)
Independent Voltage Circuit: offers unflappable current delivery under heavy load and makes voltage output more stable
Industrial grade components (capacitor, transformer, etc)

A Single GPU Requirements:
Minimum of a 450 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 28 Amps.)

My Case Has This:
2x90mm Fans 1 x 90 mm Rear Fan (Exhaust 1800rpm ,19dBA)
1 x 90 mm Top Fan (Exhaust 1800rpm, 19dBA)
2x120mm Fans 1 x 120 mm, Front Blue LED Fan (Intake,1300rpm, 17dBA)
1 x 120 mm, Rear Blue LED Fan (Exhaust,1300rpm, 17dBA)

I may be be pushing it but here is my setup:
MOBO: EVGA 122-CK-NF68-A1 LGA 775 NVIDIA nForce 680i SLI ATX Intel Motherboard
PSU: Thermaltake toughpower W0117RU ATX12V / EPS12V 750W Power Supply
HDD: Seagate Barracuda 7200.10 ST3320620AS (Perpendicular Recording Technology) 320GB 7200 RPM SATA 3.0Gb/s Hard Drive
GPU: EVGA 768-P2-N835-AR GeForce 8800GTX 768MB 384-bit GDDR3 PCI Express x16 HDCP Ready SLI Supported Video Card
CPU: Intel Core 2 Duo E6850 Conroe 3.0GHz LGA 775 Processor Model BX80557E6850
FDD: SAMSUNG Black 1.44MB 3.5" Internal Floppy Drive Windows 98SE/ ME/ 2000/ XP
SC: Creative 70SB046A00000 7.1 Channels PCI Interface Sound Blaster X-Fi XtremeGamer Fatal1ty Professional Series
F/H: Thermaltake CL-P0401 110mm Full-Range Fan CPU Cooler
Case: Thermaltake Armor Series VA8003BWS Black Full Tower Case w/ 25CM Fan
CDR: LITE-ON 20X DVD±R DVD Burner with LightScribe Black SATA Model LH-20A1L-06
RAM: CORSAIR Dominator 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model TWIN2X2048-8500C5D

My plans is to get the same GPU as I already have; the 768-P2-N835-AR GeForce 8800GTX, and also upgrade to 2 more GB of memory CORSAIR Dominator 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500). Will my power supply be enough?

 

Welcome

More than enough. You already bought it yet? Otherwise get yourself a Power PC and Cooling 750W if that's your range.

 

I already have the PC. I am going to upgrade to another 8800 GTX and 2 more GB of memory eventually. Probably after the price drops a bit of the 8800 gtx's. Which I would say be soon because no one is going to be buying those anymore. It will be GT's all the way. At the price/performance of the GT's who would want anything other than?

I just hope they don't stop making the GTX's and just reduce the price.
If I would have waited 3 more months to build my PC it would be amazing to buy 2 GT's at the price that I paid for my one GTX (584.99).
That's how it goes though...

 

Price won't drop I doubt - the G80 GPU itself is still in very high demand so prices will likely remain.

Either way, a 750W is more than enough