nice slideshows of Flickr/Google/Yahoo/Picasia/Facebook/(etc)... well a nice way to watch pictures.. but there is still room for improvement

"a simple but powerful hard disk analyser. Using a sophisticated mix of graphs, tables and tree displays, it gives the user a complete overview of the contents of a hard disk"

Defragmenter that allows to defrag only certain files (might be useful for videogames, for example ;) )