http://obliviondownloads.com/StoreCa...ubCategoryId=1
^^There's the PC downloads. The 360 Downloads are available via Marketplace. I've completed both of the quests that come with the mods, so feel free to ask me questions here.
The Orrery mod gives you a short quest for the mages guild. You must travel to 5 bandit camps, retreiving stolen Dwemer parts to fix the Orrery in the Mages Guild. Once fixed, the Orrery will give your character a new power. The power given varies, depending on the phases of the moon.
The Wizard's tower is a MUST HAVE for any character that uses any type of magic. You receive it for free. It comes with the option to summon a flame, fire, or frost atranotch for the price of 3 of their co-responding salts. You also get a room full of vrious alchemy plants. You also get portals to every mages guild in the game.
You can purchase much, much more for the Wizard's Tower. You can get a bed, an extensive storage room with Imp gaurdians, an alchemy lab that boosts your alchemy skill by 15 points when you mix potions at your desk, a huge library, an enchanting alter, a spellmaking alter, and some more stuff that is quite useful to any magic character. The game mentions something about being able to re-name the tower, so if I figure it out, I'll get back to y'all about it.
Enjoy!