Seasonic, XFX, Antec and Corsair (TX enthusiast line is better than the CX Builder line) are outstanding. Silverstone, Bequiet and OCZ are excellent, be more careful with the specific model that you purchase. Stay away from the Coolermaster Extreme Power PSUs - they are craptastic. The only PSU that I would consider from CM are the Silent Pro products.
I would personally get one of the Seasonic S12II or M12II, XFX Pro series, Corsair TX or Antec HCG. What are your system components?
Went for the seasonic 1000w platinum in the end , I know it's overkill or current system , but I want this system to be upgradeable over the years , and with that PSU it should be able to take anything I throw at it , plus it has a 7 year warranty ,
Thanks for your help guys