If Devin Hester is drafted in the first two rounds, I'll just laugh at whoever drafts him. He obviously can't play corner worth anything, since he wasn't even a starter in COLLEGE. He has relatively no meaningful experience playing WR. So he's basically a KR/PR with no other position. You don't use high second round picks on those types.
A couple of guys to look for COULD be ILB Abdul Hodge (possible that he could fall to early 2nd, though he's a bit short, measuring in at 5'11, then again that didn't hurt Lofa Tatupu or Zach Thomas), ILB D'Qwell Jackson (may not be big or strong enough to fit all schemes). Some OT's: Marcus McNeill could has been rumored to be falling a bit, he's a massive run blocking RT from Auburn, Andrew Whitworth - basically a RT, Daryn Colledge - more of a pass protecting LT type, a poor mans D'Brickashaw.
Personally, I'd like to get Abdul Hodge in the early 2nd. He's a little short, but he's very stout against the run and can hit like a mack truck. We need someone in the middle to give us some pop.