Ah, but how do you know the folks who have posted in this thread aren't
in your league... This could all be a plot cooked up by your rivals (A little paranoia never hurt when contemplating trades).
Seriously, though, glad you like the site!
That group of pitchers is hard to choose from, once you go past Pedro and exclude closers. None of these guys is a sure thing, although I like all of them. The trouble is that those with the highest upside (Padilla and Clement, in my opinion), might be overperforming to a certain extent. Still, I'd choose one of those two, and hope that their high k/ip numbers and excellent control aren't flukes. Padilla would be my choice, but opinions on this group are likely to be all over the board, and you couldn't fault anyone for suggesting Ritchie, Nomo or Sabathia, either.
If the risk of having another hot youngster doesn't scare you, ask for Padilla and possibly a small throw-in, just to see what you could get.