Simidude - Drag and Drop ANYTHING Between Different Computers. Simidude lets you drag and drop files, folders, text, and web addresses between any of your computers, no matter if they’re running Linux, Windows, or MacOS X
BitsduJour has Simidude for $9.95 (reg. $35) on April 05, 2009 http://www.bitsdujour.com/software/simidude/
I tried the software after seeing it listed on BitsduJour, pretty useful if you have more than one PC at home/work and want to easily share clipboard, URLs, files, etc. I no longer have to use a portable drive between machines or use email to share links or files. It also works with Virtual Machines. A single license covers all machines in a cluster which I think is very generous from the author.
Here is a link to their site:http://www.simidude.com/