Looks like the Ainmhi race (kinda hard to miss the best catgirls in the modding community) coupled with Exnem's Eyecandy body, and I'd bet money that Ren's Beautiful People is being used as well. The pose comes from Actors In Charge. The only thing I can't positively ID is the garters (or whatever those are). All of those can be found at http://planetelderscrolls.gamespy.com/fms/TopRated.php?content=oblivionmods
It always amuses me how people install tons of those beauty mods when they change little in the gameplay. Sure, it's nice to be able to strip a bandit and see the curves, but other than that there is no point. Mods like deadly reflex add much more to the game.
I've got to agree with Cetedus. Deadly Reflex made Oblivion for the PC for me. It was so awesome, to be able to behead a Draemora or chop a bandits arms off. And horse mounted combat was a plus, even if it wasn't exactly bug-free and perfect.
I don't know what Bethesda was thinking when they didn't make mounted combat a possibility. That should've been done =\