Better/comparable cheaper PSU than this Seasonic?

Wondering if anyone knows of a comparable PSU that's as reliable but lower priced.

OR would this 550w be acceptable for a 430w rated system?

I do "plan" to overclock.
All XFX PSUs are made by Seasonic. This 650W model is $100:
If you can use a lower wattage (post your specs), then obviously you'll be able to spend less.
Edit: missed your second comment. If your system will draw 430W, then the 550W Seasonic would operate comfortably in an efficient part of its range, and still offer plenty of room for overclocking.