I've got this gadget in Vista that puts Recycle Bin, Control Panel, Explorer and My Computer in a little Window within the side bar.
Might not sound a lot but it means I have absolutely NO desktop icons, which is great.
Unfortunately, can't remember what it's called, lol
I have it saved somewhere, I dare say when I change to Win 7 I will find it.
I also like the little slideshow which is also in the sidebar and the global clock.
They're the only ones I have, I haven't actually looked for any others since my initial install, novelty wore off