Ok, everybody's finally in... the league has been created and everybody can start setting their pre-draft lineup anytime they want.
RE: the trading of draft picks
I have no way of setting the order prior to the draft. This is the description Yahoo gives for the trade feature:
"Increase the level of strategic competition in your league by allowing managers to trade draft picks for next year’s draft. When this setting is enabled, managers can trade draft picks in any round for players and/or other draft picks. Once a trade involving a draft pick is made, this setting cannot be disabled. Draft pick trading is not available for auction draft leagues."
Since it involves future draft picks, I think we'll be passing on this feature. Let me know otherwise.