So I've decided to replay Morrowind and I would like a nice list of good, working mods to use. I plan on being Telvanni so a few Telvanni/wizard centered mods would be nice.

A Telvanni playthrough? You're in luck, there's lots of content for those.

http://planetelderscrolls.gamespy.com/View.php?id=5997&view=Mods.Detail
http://planetelderscrolls.gamespy.com/View.php?view=mods.detail&id=4449
http://lgnpc.org/downloads

The current release of http://planetelderscrolls.gamespy.com/View.php?view=mods.detail&id=7040 is set in Telvanni territory and has quests for those as well.

Telvanni wizards may also be interested in joining the http://planetelderscrolls.gamespy.com/View.php?view=mods.detail&id=127 and the http://planetelderscrolls.gamespy.com/View.php?view=mods.detail&id=732.

For a general overview of finding/using mods: http://www.gamesas.com/index.php?/topic/1060141-mod-recommendations-for-new-players/page__hl__recommendations

Mythic mods has a http://www.mwmythicmods.com/mage.htm

http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=7736, which is Building Up Uvirith's Grave made compatible with Uvirith's Legacy. Definitely recommended for use in conjunction with UL and RoHT.

If you're interested in the Mage Guild too, there's http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=9175, which adds quests to the Caldera branch.