This is what I have right now, and I love it.
Logitech Office Internet Pro:
http://www.newegg.com/Product/Product.asp?Item=N82E16823126164
It's cheap and it feels good to type on, plus it's very silent. The INS-DEL keys are in the same format except they removed the INS key (which is pretty useless) and enlarged the DEL key.
Then I have a Mx510... very good but it gets dirty too easily, and I still think it might be a bit small.
If I had more money, I'd get the Logitech Elite, which is the same thing with a bunch of more buttons and a scroll wheel to the side. As for mouse, maybe a Mx518 or a G5 when it comes out. I still don't trust wireless yet... my last wireless mouse was way screwy.
Norm