Blacktree
Quicksilver
FreeAccess applications and personal data by typing abbreviations.
MacNocturne
FreeChange your display colors in ways more suited to low light conditions (such as at night).
MacChime
FreeListen to an hourly chime marking the passage of time.
iOSiTunes-LAME Encoder
Freeconvert cd & aac to mp3 with lame
MacSecrets
FreeTweak hidden prefs in Apple and third-party apps.
Mac