Network admin books

I just started an internship at a local company that installs and does maintence on small business computer networks (10-100 workstations) and I just realized that I know nothing about Win2000 in a networked enviornment. I need some reccomendations on books about Win2000 networking, and something on Microsoft Exchange. Thanks for the help.

I've had some luck with THIS book for exchange 2k.

You might want to search around at www.bn.com

Also you might want to take a look at some of the 2k and Exchange Resource Kits available by MS.