Choosing between Nikon D5100 and D90.. Any help greatly appreciated!

Over the years I decided that I wanted a DSLR to progress in photography and upgrade my bridge camera. I've studied AS level photography and so have a fair amount of knowledge in terms of manual settings etc. 
So here's the deal: I can't choose between..
- Nikon D5100 with 18-55mm+55-200mm VR 
- Nikon D90 with 18-105mm VR
A few things that could be helpful in answering my question-
I can get these cameras for the same price (£480)
I've held both of them, and they are both equally good, however I like the extra 'bells and whistles' in terms of ergonomics from the D90
I have looked into the D7000 however it is just way over my budget
I'm into shooting a lot of things, but I particularly like wildlife/nature/landscape photography
I am not interested at all in movie making
Hopefully this gives you a rough idea about me! Please help me decide which camera kit to purchase!