I usually draft my IF first, with the exception of 1B. Catcher I usually wait on also, unless I can get a stud as a steal - but Piazza, Pudge, and Javy aren't sure-things, so I wouldn't risk a high pick on them.
Of course you have to grab anybody that falls, and if lots of people are drafting IF first, you might be able to get a steal like Halladay or Schilling much later than they should be drafted. RJ also seems to be drafted very late in some drafts. I got him 68th overall in one of my drafts, and Thome 53rd overall in the same draft.
Look for the steals (not SB's, you know what I mean) and IF to start off the draft is my advice. You can always get a good OF like Reggie Sanders much later in the draft.
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