View Folder size in Windows Explorer on Windows XP

I bookmarked this site a couple of days ago and thought I would post it up in case it might help anybody else that hasn’t seen it…  This seems like a cool tool for people running XP (not Vista compatible yet).  This program lets you see the folder size in Windows Explorer without having to right click on the folder.  Nice tool for your Tablet PC when trying to see where all the space on your drive is being used up.