<>--FPS hit.
I'm running the game on max settings with
Intel® Xeon CPU 3.60GHz processor
2048MB RAM
580 GB Hard Drive
NVIDIA GeForce 8600 GT(512mb, passive cooling edition) vid. card.
I suffered a heavy fps hit when entering the world space, particularly when entering the shrine room.

I usually run around the normal oblivion landscapes etc. with relatively small fps drops, with 15 fps being the lowest, however in here, my fps drops drastically from 25-40 to 10-20 in just this single room, whenever I look at the sky, or to another direction away from the room, the fps gets better. This is something that could use a little work to make it less heavy, if splitting the entire complex into sections isn't completely out of the picture, it might help.(Or turning it into an interior and then slicing it to 2-3 parts.)
<>--The Black Pit
Suffered slight FPS hit, but still good enough to be playable, no CTD issues with doors that work at the moment, uploading 2 vids to xfire again, I also found that some of the NPC:s need to be adjusted, the lockpicking trainer for example, she has novice skill and thus is unable to teach. Going to test the unfinished quest/npc dialogues more for the next part which I'll post in this topic
P.S. Yes I'm using 'tcl' to move around freely, did walk around the Garden of Meridia(Maze of Meridia imo. :P) for a few mins and almost got lost, the map could use some work since it really is a maze and on some parts it's rather hard to see where is a 'hallway' to get forward in the complex. Another option is to make the hallway entrypoints more visible ie. add a lamp/plant/something at the sides to make it more visible, this is just my personal opinion however.
#1-->
FPS hit video of Garden of Meridia(this was a pain to tape since I also got a 2-5fps hit from the recording program.)
#2-->
The Black Pit & BlacksmithP.P.S. If there is anything specific you want me to test, give me a shout and I'll focus on it, for now I'll just do the basic tests.