$270 - Canon EF 50mm f1.4 USM Standard & Medium Telephoto Lens for Canon SLR Cameras， Like New
http://www.amazon.com/Canon-Standard-Medium-Telephoto-Cameras/dp/B00009XVCZ/ref=sr_1_1?ie=UTF8&qid=1316539973&sr=8-1

$50 - B+W 58mm Circular Polarizer with Multi-Resistant Coating, Like New
http://www.amazon.com/58mm-Circular-Polarizer-Multi-Resistant-Coating/dp/B0000BZL5B/ref=sr_1_1?s=electronics&ie=UTF8&qid=1316540032&sr=1-1

$310 if you buy both