One great shell is Blackbox. Check out this ss for par. The shell is very configurable and is for Windows and Linux. I am currently only using the shell in Windows. Very nice look to it. There are tons of things to do and it can be tons of fun!
Blackbox
Here is a ss of my desktop:
http://img46.imageshack.us/my.php?image=bb4win3fk.jpg
Rat