Alomar is still a top 10 starter at second base, definitely not an elite 2B, but he is still perfectly solid to use there if you can't get Soriano, Vidro, Kent or maybe one of the Boones. He also has the potential to rebound in a huge way from last year, but it won't happen until Piazza and Floyd start rolling.
Floyd is injury prone and is obviously not a top option at outfield, but he is still IMO starter calibre in a 10-12 team mixed league. Yes, his numbers will decline now that he has moved to Shea but he should still hit about .280-30-90 as the Mets' cleanup hitter. If you have any outfielders worse than that as starters or on your bench, I'd grab Floyd, he's still a solid player and will heat up. Maybe the grand slam he hit today will get him rolling. He is still a top 30-35 outfielder.