Help with choosing a PSU

I recently bought a new pc but I want to upgrade the PSU from a 350 to anything really.

MY pc specs are :

AMD FX-6300 3.5GHz
64 bit Six-Core Processor
6MB L2 Cache
8GB DDR3 1333
1TB SATA II 3.0Gb/s 7200RPM
AMD Radeon HD 7750 2GB
I plan on doing a CrossFire in the fore see-able future as well.
My budget is around $120-ish Canadian but I am willing to spend more if it'll be worth it in the long run.

Xfx550w, cheap and is of good quality. Then save the rest for a new GPU if you intend to do any graphically intense gaming, cause that 7750 is to weak a card.

i've got a corsair gs600w which is pretty good, im shallow so i like the LEDs as well :D

+1 for XFX 550w