Halladay/C. Hart/J. Pierre for Billingsley/BJ Upton? WHIR

[Hawkeye1]

I'm in a 15 team roto keeper league. We can keep up to 7 players in exchange for the draft pick they were selected with last year.

Our categories are: Doubles + Triples, HRs, KOs, On Base %, Runs, RBIs - HRs, Stolen Bases - Caught Stealing, Slugging %, WHIP, Wins - Loses, Net Saves, Ks, HRs Allowed, Holds, ERA, and Complete Games/Shut Outs/No Hitters.

Our positions: 2 Cs, 1B, 2B, SS, 3B, Middle Infielder, Corner Infielder, 5 OFs, DH and any 9 pitchers. There are also 9 bench spots.

Here are the guys I'm considering plus their draft round. I've also included players that I think may have some trade value. Obviously, I'll be looking to package some of these guys for upgrades. I've put asterix by the guys I'm likely keeping. I'd be giving up Bills and Upton. Halladay is a 2nd round pick, Hart a 19th and Pierre a 13th. Halladay would be an upgrade over Bills, but I'm leary of giving up on Upton. Does he finally break out this year? How much does Pierre have in the tank? I'd likely keep him to make up for Upton's steals, but not sure. Hart would be a garbage throw in. Thoughts?
A-Rod - 1*
Derrek Lee - 2
Ryan Zimmerman - 3*
Joe Nathan - 4
Carlos Zambrano - 5
Chad Billingsley - 10*
Hideki Matsui - 12
Ryan Doumit - 19
BJ Upton - 20*
Carlos Quentin - 21*
Jon Lester - 22*
Cliff Lee - 29*

[HOOTIE]

Bad deal

[MaudDib]

I would rather have Billingsley and Upton. These two are trending upwards where as the guys you would be getting in return are what they are and in Halladay's case is nice but I wouldn't pay just for him.

[boredguy]

Halladay as a 2nd rounder isn't great value, stick with Bills/BJ