Foxit Reader - Adobe Acrobat Reader is between 60 and 70mb in size. Foxit Reader is roughly 2mb in size. They both do exactly the same things and Foxit Reader doesn't suffer from ads and requests to add random Yahoo products. So, in short, Foxit Reader is better.

TightVNC - Great for fixing problems on other computers ona network without having to go to that other system.

XChat 2 - Original X-Chat for Windows has an evaluation period on it. This doesn't. It's the best IRC client around.

OpenOffice.org Draw - A great free DTP program.

Look for all of these on Google.