Mark Teixeira will be a free agent next year, but he will be highly sought after, not to mention that his agent is Scott Boras, plus the Yankees will be after him as well.
The free agent market is thin for next year, with the exception of Teixeira. Here is the list of First Basemen from mlbtraderumors.com listed with age.
How about trading for Xavier Nady and moving him permanently to 1B. The Mets can go after Teixeira, but if they don't get him, Nady will be a nice backup plan. The only problem is that the Pirates may ask for Ryan Church in return.
Nick Evans is an additional 1B prospect to consider. Also maybe even a guy like Dan Murphy could be converted to 1B. There are quite a few talented prospects in AA at my old stomping grounds in Binghamton. Went up to visit a couple of times and got to see a couple games. Both Evans and Murphy looked like very capable players and to boot although he isn't getting on base as much as would be liked I really like F-Mart.
I really think it depends on our outfield next year as well, Ryan Church can also be converted to 1B. If FMart is ready to come up from the minors, and if Angel Pagan plays well, but the outfield is short of power if you have pagan, beltran, and martinez out there. So it really depends on what the Mets are willing to do.
If we can't sign Teixeira, I think it will have to be a converted outfielder either from within or free agency. Adam Dunn would be my first choice, as he will be a free agent next year.......... Although not a likely solution to the problem, Marlon Anderson did a great job at first the other day.
If we're thinking about Pirates, what about Adam LaRoche? I know his numbers so far this year aren't good, but he raked when he played for the Braves (and it mattered). A change of scene might be all he needs.
He's expensive for the Pirates, and we might be able to get him cheap (you know, buy low...)