Here's a link to the basic 3rd edition conversion manual page from Wizards of the Coast: http://www.wizards.com/dnd/DnD_CYC_intro.asp
Another excellent conversion of Arabian Adventures that's pretty far along. 1/15/01
http://www.kynn.com/aq3e/
A 3rd edition Sha'ir. Aside from a few typos, it's a nice conversion. 1/15/01
http://www.geocities.com/power_rpg/3ealqadim.html
Another 3rd edition Sha'ir. This conversion has been "tweaked" a bit too much for my personal taste. Still, it was the first conversion that we could find. 12/1/01
http://www.rpgevolution.com/issue1-2/shair.html
A Ghul Lord conversion. 1/15/01
http://www.geocities.com/vincentdarlage/ghullord.html
And finally, a page that offers some suggestions on converting the Arabian Adventures sourcebook. 1/15/01
http://trabant.uchicago.edu/~jwlandry/rpg/