I just bought Oblivion on Steam because it was on sale. I have previously played it on the 360. Can anyone give any mod suggestions? any UI mods or just general gameplay mods. I'm not interested in any texture/graphical overhaul mods. I would greatly appreciate any help

I would suggest "Unique landscape" and "Better Cities" because that gives the world a complete new feeling without moving away from the original intention of Bethesda.

Kvatch Rebuilt (allows you to rebuild Kvatch after its devastation)

http://oblivion.nexusmods.com/mods/16815/ (adds the city of Sutch which was meant to be in the game but scrapped)

http://oblivion.nexusmods.com/mods/41012/

http://oblivion.nexusmods.com/mods/39591/

http://oblivion.nexusmods.com/mods/42490/

http://oblivion.nexusmods.com/mods/9562/?

http://oblivion.nexusmods.com/mods/43612/ (I know you said no graphics overhauls but this deserves at least a consideration)

http://oblivion.nexusmods.com/mods/40757/?

Mostly quest mods, but I've found that it's these kinds of mods that tend to be very high quality and add to the game a hell of a lot more than skimpy armour and plastic faces.

Oh, and the Unofficial Patches. They are a requirement.

EDIT: Forgot this one - http://oblivion.nexusmods.com/mods/30568//?

Thanks guys. I think I'll play through the game a bit first, then I'll have a look at the mods you mentioned.

For UI I use http://oblivion.nexusmods.com/mods/10763/?. There's also others you might like. I don't know I'm a creature of habit and I've always used this one and it does everything I like.

And I ALWAYS have this mod because well .. it's just cool. http://oblivion.nexusmods.com/mods/5684//?

The unofficial patches.

Yes, one does not simply play a Bethesda game without the unofficial patch.