I've mentioned a few in other threads.
Want real good value? Senorice Perry. Not sure why his yds/carry was so modest because he has really really underrated power. A true 2nd gear. Sets up blocks well. Not as fluid as Harris in the hole, but gets small and explodes to the side of would be tacklers allowing him to carry the forward. He's taller than I like which can create some fumble/injury issues for most rbs but he can also add 15lbs and not lose that speed. In addition. He plays special teams and is pretty good as on coverage teams. Awesome value for a team and offers surprising upside for a team that helps him fill out.