First, the d20 System Trademark License is gone. Your work will be
OGL. Read the Open Gaming License very, very carefully. If there's anything in there you don't fully understand, you might consider consulting an attorney.
http://www.wizards.com/default.asp?x...cle/srdarchive
Second, put away your 3.5 books, forget everything that's in them, and carefully examine a copy of the System Reference Document. This, and not the 3.5 books, is the material which you may copy or to which you may refer when making an
OGL product. Everything else you must make from scratch, except that you may use Open Game Content from other publishers' books --
WOTC books tend to have zero Open Game Content. Remember that you must cite every work whose OGC you use, including the
SRD, in your Section 15.
http://www.d20srd.org/ http://www.systemreferencedocuments....sage/home.html
Third, I have no information on finding a publisher, but best of luck.