Additions to the mock Colts picks list:
DE, Darrell Robertson (profile) (another) a pass rushing specialist with the frame to add weight. 6'5" 240-250. Labeled a tweener, but may be bigger than Robert Mathis already.
WR, James Hardy (profile) A giant (6'7") WR to contrast the trio of 6 footers the Colts have at the 1-3 spots.
LB, Geno Hayes, a quick LB that can cover the pass well and isn't a liability against the run
FB Jacob Hester (profile) another HB/FB tweener. Good hands, converts short yardage situations often and is great on special teams. Not fast or explosive as a HB and not a powerful lead blocking FB.
Full list is here