Finder Icon GONE...

...So when I sat down and jiggled the mouse of my iMac, a message came up that said I was running out of disk space. Oh my, I thought. How could I have used that much disk space? Well, I restarted and I had 126GB left again, what a relief. But wait a minute...my Finder icon was gone!
Here's a screenshot:
http://img.skitch.com/20080127-nwxskicwq49ipna4c7jujejfqp.jpg

I bought CandyBar hoping to correct it (I kind of wanted it anyway--this was just an excuse to get it ) but it didn't help.

Any ideas?

Thanks,
Jonathan

Look under /system/library/coreservices
And drag it back to the dock.