Check DFSG "Fields of Endeavor" clause. Basically, no, there isn't a DFSG compatible license that prohibits commercial derived works, because DFSG specifically prevents this. Remember, commercial does NOT equal proprietary.
If you want to prevent proprietary derived works, GPL works great. jeff ----------------------------------------------------------------------- Jeffry Smith Technical Sales Consultant Mission Critical Linux [EMAIL PROTECTED] phone:603.930.9739 fax:978.446.9470 ----------------------------------------------------------------------- Thought for today: creep v. To advance, grow, or multiply inexorably. In hackish usage this verb has overtones of menace and silliness, evoking the creeping horrors of low-budget monster movies.