I don't like trading up myself. You seem to lose more than you gain. You can win like Baltimore did trading up to get Flacco (sp?) last year, but it seems more of them fail than succeed. I just think it would be too risky. Maybe I just can't get away from the Babin

deal.
Now trading down, that's another story!
Well, let's look at the guys that teams traded up for in last year's first round.
7--Sedrick Ellis (NO). I think he started but admit to not knowing much about how he did. But the Saints were absolutely desperate for a DT, so they had to be aggressive.
8--Derrick Harvey (Jax). If you're going to trade up, you better make sure you can sign the guy. Almost a total washout this year, but, as we all know, you can't judge a DE solely on his first season.
15--Brandon Albert (KC). A much-praised rookie starter. I doubt we'd have traded down if he lasted to 18.
18--Flacco. Pretty darned good early return, I'd say. The epitome of a win-win trade (Flacco for Brown and Slaton).
19--Jeff Otah (Car). Really solidified the Carolina OL and fit their scheme like a glove. I hate trading away a future first pick, but Carolina's strong season (thanks in some part to Otah) means the pick they gave up isn't going to be very high.
21--Sam Baker (Atl). Played well but got hurt. Still, Atlanta's OL was a revelation, and he was a part of it.
25--Mike Jenkins (Dall). Did not have much impact and played some pitiful matador defense at times. A guy taken in the fifth round--Orlando Scandrick (himself a trade-up target) seems to have outplayed him.
30--Dustin Keller (NYJ). Already being called one of the best young TEs around.
So, of the 8 trade-up targets in last year's draft, five have been unqualified successes thus far. I don't know about Ellis. Harvey and Jenkins are the only ones who did not have good rookie campaigns.