Should I get a different PSU?

I recently built a new system consisting of a Phenom II X555 Black unlocked and overclocked and a GTX 460 overclocked and with 3 hard drives 1 optical and a bunch of fans. I bought a BFG GS 550 PSU. I am within the 30 day return policy at Microcenter. I haven't had any problems so far, but I'm wondering if I should swap it out for something different/better. Number one reason I want to is all the talk of BFG not supporting their products anymore and going out of business. Number two would be with my overclock and other components in my system I'm worried I'm pushing the limits of the PSU without knowing and want some flexibility if I choose to add a dedicated physx card or something later.