http://reefs.org/phpBB2/viewtopic.php?t=20679

PFO 175W Ballast - Dual @ $115.95
Coupon PB45GF

PFO 250W Ballast - Dual @ $135.95
Coupon PBMX22

PFO 250W HQI Ballast - Dual @ $199.95
Coupon PBR7YY

PFO 400W Ballast - Dual @ $144.95
Coupon PB864R
Just thought i'd share 8)

Pretty good price.. I think I paid like $160 each for my dual-250's.