Great and simple text editor (think notepad). Loads in an instant, does all the basic work you expect from a simple text editor.
The best Gnome image catalog app out there. Bonus: the digital camera integration and CD burning facility.
4. Gaim & Gossip
While I don't agree with some Gaim developers regarding their focus and direction, Gaim does the job for all of us who require mult-IM. For those who prefer it Free, Gossip is a great Jabber-only client, with a highly HIG-ified UI.
6. The Gimp
Everyone knows the Gimp. Retouching photos by adding glowing lightsabers to your pictures? The Gimp can do it just like Photoshop can!
Great video and sound Player. Add and those illegal/pirated win32 codecs, and you are all set. ;)
Powerful spreadsheet, does the job and looks good too.
A good all around word processor.
Kino is one of the apps that I believe has tremendous potential. It's still not stable and its interface is a bit chaotic, but it's getting there.
A great diff utility. Really helpful.
16. Sound Juicer
I can best describe Sound Juicer as "cute". It's a nice little utility, works well, and it also looks good.
Ultimate IRC chatting application with many additional useless features too.
A handly utility to download big files off the web, especially if you are on dial-up.
For those who need to do it in SVG and vectors instead of rasters, Inkscape should be able to pull it through well.
Now, if only there were a usable CD/DVD-burning Gnome application available too...