My laptops 3rd desktop (I have 4 workspaces), post it note and system monitors on the left top. Encyption software in the systray, K-Menu, Konqeror sessions menu (like Firefox plus Windows Explorer in one app), Opera my fav GUI web browser, terminal emulator (like a DOS window), quick browser showing my Programming directory, xmms (which is running), and gaim messanger icons on the one side, a mini-display of my 4 desktops and a file shredder round out my new setup for the bottom panel. I also use transparncy /w shading for the panel & menu's, plus a Window decoration thats see through. You see a notepad like program /w a little program I have toyed with for testing my grasp on parts of programming over my studies.
To me it's a very nice setup, looks good, works good, it's clean, andkeeps icons off my desktop + I can hide the panel when ever I want more screen realistate, using a mini clock & pager for time & desktop switching.