The only player I'd really be "happy" with trading up for would be Aaron Curry. The problem is he cemented himself as a top 5 pick, so we'd be giving up a lot of picks AND paying him outrageous money. Then within a year we'd be turning around and making Demeco one of the highest paid LBs in the league. That just doesn't sit right with me.
However, Curry would be the perfect SAM for us and on passing downs we could still leave him and Demeco out there, so he'd be an everydown player.
I'd rather them not trade up though unless it's packaging some later round picks to move back up into the 2nd or 3rd if some guy drops.
Shoot, I'd go so far as to say if they could pull a trade down into the late first (pick up a 3rd) we could have our entire roster pretty much set with possible starters or very good depth. One more year of steady drafting but with 9 draft picks? We'd be on the verge of being perennial AFC South Champions. Finish off our depth chart, re-sign some key personnel to long term contracts, couple key FA moves and then go after an elite FA next offseason.
To be a team where I want us to be we still need to find (on roster or elsewhere) a RDE, NT, SLB, CB, S, RG, RB, WR, QB. Now some of those (3?) should be starters, the rest quality depth. If we could get there, that's when I'd be comfortable trading up in the draft or for a marquee player.
I see next years' draft having some real studs we could trade up for, this year not as much. Of course I'm sure I said the exact same thing last year
I say stand pat/trade down finish off depth and a few key starters. Next year get(trade up for) SS ERic Berry (the next Polomalu/Taylor kind of safey).