[khtse]

Have been looking for the cheapest reference 570. This seems to be it

http://www.buy.com/prod/galaxy-57nkh3hs4gxk-geforce-gtx-570-graphics-card-732-mhz-core-1-50-gb/q/loc/101/219607963.html

$281.99 after rebate

Use this offer to take another $10 off (just register a new email)
http://www.fatwallet.com/Buy-coupons/offer-490267/

 

[Kand]

I'll be first to steer you clear from reference GTX 570's.

http://www.overclock.net/nvidia/929152-have-you-killed-570-a.html