Awesome thread! I actually teach a Digital Photography night class at my local TAFE and I am always happy to help answer questions etc.

Here's what I currently use:

Body:
Nikon D80 (it's old and dying and I'm planning on upgrading soon)

Lenses:
Nikon 18-135mm f3.5-5.6
Sigma 24-70mm f2.8
Sigma 70-300mm f4-5.6 APO DG Macro

I'm hoping to invest in a Nikon D700 soon but it all depends on money. If only it grew on trees, right?