Newbie SysAdmin: reccomendations?

It seems like soon I’ll finally be getting a chance at SysAdmin, something I’ve been wanting to do for a while. However, I lack experience, so I would like to ask for some advice, recommended reading and practices, particularly in the Unix/Linux arena, in which I’m not very familiar (I’ve only taken the MCSE courses… MS Win 2K Pro, Advanced, AD, SMS)

Thanks in advance for your opinions.