Yeah, tough break on Mulder there. He would have been a nice addition to your staff. At least you know you will have some competition in your league this year. Another team owner realized the mistake that he was still available and grabbed him nonetheless.
Out of the three pitchers you mentioned, I like Carlos Zambrano
the most for your next pick. Hopefully Dusty Baker won't repeat last year and attempt to reduce all of his starting pitcher's arms to spaghetti by the end of the season. Zambrano is young and looked extrememly effective in the latter weeks of the season last year. If he can regain that composure for this season, he will make a great draft pick in the 13th Round to help anchor your SP staff.
I also believe that you can possibly grab Contreras
later on in the draft.
As far as your second pick, I might consider going in the direction of RP Dotel
over Teixeira. Tough choice there, but either way you are going to get value in this round with your second pick (14th Round) so you really can't go wrong with either selection.
Just my .02 cents. Hope this helps and good luck.