I don't like the CX600 because how much does it cost after tax?
The 550W SeaSonic G Series absolutely crushes the CX600, and it doesn't cost that much more at $89.99 shipped. It is a high-end modular power supply while the CX600 is just a budget-oriented non-modular PSU. It's ok, but I think it's an absolute rip-off for that price due to the ridiculous price of the 550W SeaSonic G Series.
Edit: It also has a larger +12V capacity. The CX600 (the original, not the V2) has a +12V capacity of only 480W. There are a lot of quality-made 520W power supplies that have a +12V capacity of 480W. Anyway, the 550W SeaSonic G Series has a +12V capacity of 540W.
Edited by TwoCables - 11/29/12 at 8:26am