Take that little step and buy a Corsair PSU..is more safer for u. Don't touch TT,CM PSU 's.
U really need a modular PSU? U have a SLI based system, therefore u use enough cables and u can "hide" the few extra cables remaining non used. Is worth a minimum of 40$ premium price for modular feature?
I got on Ebay and won a case for $100. It's a Silverstone Raven 2. From the looks of it I will not have any trouble hiding my cables on my PC P&C PSU. It's a full tower and the whole setup just looks like it's gonna be great.