Up until last year, trades went roughly by the "chart." However, last year, it seemed teams caught on, and it cost way less to trade up in the first round. The chart will be accurate again if a rookie scale comes online, but I think this year, we may be able to move up several spots with a 3rd.
I'd trade a 1st and 2nd for Jones or Quinn, even though I generally hate trading up. We're to the point that, though we could use several people, we truly need quality over quantity, and a playmaker is worth 3 solid starters/depth. (Sort of in the realm of would you trade Nicholas and Blalock for an impact player, or Anderson and Huston...when he was around...for an impact player. Two solid starters in the first example, and a 1st and 2nd in the second.) The key is, you have to be very certain in the player you're trading up for.
Where I really hope we trade is with the late rounders. I'd like to start trading the 7ths, 6ths, and 5ths for next year 5ths, 4ths, 3rds. We're in a position to start doing that now, and you can sacrifice some late picks this year for setting up some earlier ones in the future.