Just running through names in my head for the BP, obviously nothing is guaranteed:
Qualls (probably best of remaining last year's pen)
Villiareal (acquire via trade from Atl)
Brocail (just signed, based on this thread)
Geary (acquired via trade from Phi)
Sarfate (did well for Houston, erratic for Mil)
----------------
Nieve (DLed last year, out of options, I think)
Albers (Not sure options status, rotation looks like might push him to BP)
Sampson (Not sure options status, was on yo-yo last year, but might fill Moehler role)
Borkowski (did pitch in 64 games last year)
McLemore (Lefty option)
Paulino (late season call-up 07)
Gutierrez (late season call-up 07)
Not sure if I missed someone, but I think I addressed all who are on 40-man who are potentials to make bullpen. I didn't include Patton cause I think he is a starter either in Hou or in RR.
The line is where I cut-off the probables to the maybes. With a 12 man staff, that leaves 2 spots left outside of my probables and barring trading some of them away.