Here's a couple of good ones. I love Antec PSUs, but PCP&C even more.
http://ncix.com/products/index.php?s...c&promoid=1280 - at 64.99, great deal without having OCZ's MIR hassles.
http://ncix.com/products/index.php?s...y&promoid=1280 59.99 after MIR, if you want to do it. This will be more than enough to keep you satisfied for future system upgrades.
http://ncix.com/products/index.php?s...r&promoid=1280 cheapest out of the bunch, but no room for future moves.
http://ncix.com/products/index.php?s...g&promoid=1280 Yummy - 54A 12v rail, so even super-power hungry cards (think ATI's x2 cards) will be fine. Also, PCP&C make good stuff even though OCZ's bought them out. Not the cheapest, but also very quiet.
http://ncix.com/products/index.php?s...y&promoid=1280 good compromise between power and budget. MIR deal though.