Also for Wyatt's question on calculating the replacements value:
What I found is that the last few guys to make the cut at any given position are more or less interchangeable, so I would use an average of the last 4 guys who made the cut to the player universe, and then the next best 4 guys who didn't. That should give you a good picture of what the average replacement at a given position would look like.
If you're league has dedicated MI, and CI slots (for a 12 team league for example) I would just take the best 18 1B, best 18 2B etc. It just makes things easier and like I said, the last few guys to make the cut to the player universe are pretty close to replacement anyways so it's not really a huge deal if you're off on them a little bit. Oh, and if you have 1 Util slot for a 12 team league, I just use the best DH's, and then fill in the rest of the 12 guys with OF's.. all the best players left tend to be OF's at that point anyways.