Corsair TX750 enough?

[Tech Tweaker]

I will soon have 3x NVIDIA GTX260 video cards that I am planning to try out in Tri-SLI and was wondering if the largest power supply I have on hand would be enough to power the rig.

What I have in mind is this:
CPU- Intel Core 2 Quad Q6600 SLACR (CPU might vary though, I could have anything from an E4400-E8400 dual-core in, or a quad)
Motherboard- EVGA nForce 790i SLI
Memory- 2x2GB DDR3-1600 (minimum, may add more ram later though)
Graphics cards- 3x EVGA GTX 260's (Superclocked edition) in Tri-SLI
HDD- 160GB 7200RPM HDD (or 150-300GB+ 10,000 RPM Velociraptor if I find one at a decent price)
Fans- 5-6x140mm fans (at least one of which will be an LED model) 2-3+x120mm fans (at least one of which will be an LED model)
A fan controller
PSU- Corsair TX750

The power supply only has connectors for 4x6pin/6+2pin PCI-Express connectors though.

So, the big question is will I be able to use molex-to-PCIe power connectors and have enough Wattage and Amperage to power this rig? Or should I start looking for a power supply with higher Wattage/more Amperage/more connectors?

 

[\dev\goat]

Some quick google shows an average TDP of like ~180 for the gtx260s, so

750
-540w for 3x 260s
-105w for q6600
-------
105w for everything else. Cuttin it close but it should be fine.

 

[wingman99]

You should be fine the recommended PSU is 535w so you will have plenty of reserve. Also using the Molex to PCIe power connectors will work fine.
http://www.extreme.outervision.com/PSUEngine

 

[Bobnova]

I wouldn't do a lot of OCing, but it'll be fine for stock.