I've finally settled on the House D'Orthay. It's a very cleverly written and designed mod (D'orthay O'Canzaz, flying monkeys, sapphire slippers...you'll quickly get the picture
The house itself sits off the southern coast of Seyda Neen, on it's own small, user-made island. You have to find the house (via quest-like dialogue clues) and also defeat it's guardian to claim it. Once inside, you won't be overwhelmed with it's grandeur...it's large, but relatively plain. It has a teleport area, but happily, you have to find the "Gatestone" for each location (by travelling there via foot/ship/strider) before you can activate the corresponding portal. This allows you to explore the land normally and use the t-port as a mere convenience much later. You can also make a quick trip back to the house via the "Sapphire Slippers" you find when you find the initial clues (in the rather tounge-in-cheek worded journal) to the gatestone locations.
The absolute best feature of the House D'Dorthay, IMHO is the little "alchemy nook" it provides. Bottles on shelves provide ready-made containers for EACH ingredient in the game...in alphebetical order
Anyone interested in this (or other mods) can find it by going here:
http://www.morrowindfiles.com/index.php
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