Look for the Fantasy Mod made by Spoon. It is an attempt at this.
Also, check out the Adamant Mod by me, linked in my signature. It has races of magic-weilding people in it. It is not a total conVersion, as there are also normal Physical races and Organic races, but it approaches it.
If you are interested in the mod, I would not object to hiring you to help work on the magic aspects.
To upload to these forums, go to the main Intel Forums page. Go into the Scenarios/Mods section (the first one) and upload your files in a post in the appropriate SE4 thread (Data/Graphics Modifications). Copy and paste the link in to here.
[ May 11, 2003, 19:12: Message edited by: Imperator Fyron ]