Every Friday Tim Ryan and Pat Kirwan have an nfl mock draft and they argue and convince each other back an forth. It makes for one of the most realistic mock drafts you can have. Last friday they went thru the 2nd round. the link below should be updated shortly to reflect the 2 rounds from last week. check back frequently as they make very valid and realistic mock picks. good radio for the off season.
http://www.sirius.com/nfl select tim and pats mock link from that page