I like the list.  Thanks for putting it together.  My thoughts:
Mostly, I think Blount will neutralize the upside of Martin, but won't make enough hay on his own absent an injury to Martin to be a significant FF contributor.  Maybe he can be a TD producer, but I'm not buying that he's going to be MORE productive after TB spends at first rounder on a more complete RB.
I'm lukewarm on Cutler, who has all the upside I want, but other than one very good year, he hasn't put it together for fantasy purposes.  At some point, he is what he is, and though I agree he represents good value, forecasting a top five finish in an era when 4000 and 30 is what it takes for someone who has only approached those numbers once seems a bit overly optimistic.
I'm on board with Marshall (to be fair, he is trending as the sixth WR off the board, so it's not really a stretch to call him a top five WR) and Little in their entirety.  Tamme is one of those TEs that I'll be happy to land if I miss on the big guys, but I'm definitely getting a decent second.  Tamme is good pass receiver, but a very weak blocker (IIRC), which will limit his opportunities.  Top 10 sounds reasonable, but Top Five in what looks to be a banner year for TE production, is asking a bit much.
As to the bonus guys, I like them all except Hunter.  Only way he makes into relevance is an injury to Gore.  Now, if the reasoning is that you expect Gore to succumb to a major injury, that's a different story, but Hunter will not pass Gore on the depth chart.
Okay, so since I've slung my arrows, it's only fair that I put a few guys up myself for critique:
QB: Rivers.  ADP in round 7?  Four straight years of over 4000 yds and 27 TDs going only one round in front of a rookie (RGIII) and Cutler?  Found money in round six, let alone seven if he's there.  A legit chance of being the top QB at year's end.
WR: Crabtree ADP in round 11.  Crabtree will be the focal point of niners passing game.  Finished as WR33 as the primary target on a weak passing offense.  The niners passing attack has to improve, and Crabtree will be a major beneficiary.
RB: Donald Brown.  Round 6 seems almost gift like for a true lead back.  Sure, a measure of RBBC beckons, but it's his show now and, with his receiving skills and a QB that understands the short game, I could see a top 15 finish in PPR.
TE: Celek.  Round 13.  After a disastrous start, he finished in the top six from week six on.  Camp injuries are the main tempering force in what I expect from him as a TE. Philly, with great defense stretchers at WR and a great receiving back in the short game, has a lot of open midfield for any TE and Celek should continue his work from last year.