Useful Apps
Cyberduck
Opensource FTP client.
Handbrake
DVD and Video to MPEG-4 conversion.
note: requires libdvdcss which may not be allowed in your country.
Chicken of the VNC
Remote control your desktop from anywhere.
Help and advice
Life Hacker
When you want to get something done!.
Mac OS Hints
What it says on the tin.
Developer
Applescript
Introductory guide to Applescript.