CoolIris 1.8 Beta for Safari
19.08.08
PicLens returns to Safari, at last!
26.05.08
Once one of the reasons for choosing Safari over other browsers on the Mac, PicLens has seemingly left Safari on the outside looking in.
22.05.08
Alive, and apparently living in a one-bedroom apartment in Queens.
Updated: 14.08.08
License: Free
URL: Inquisitor 3.2
Requires: 10.4+ Safari 3.0+
Inquisitor adds live predictive searching to Safari. This replaces the current search bar functionality with a fast live-search style drop down. Start typing your search, and the list appears with possible queries.
Updated: 05.08.08
License: Freeware
URL: Glims 1.0, Beta 6
Requires: Safari 3.0.4 (4525.18) or later

Is it Saft? Is it Inquisitor? No, its Glims!
Glims adds a suite of features to Safari, some of which can be found elsewhere, and others which are unique to Glims.
Updated: 22.07.08
License: Shareware - $12
URL: Saft v10.5.3
Requires: 10.5.3+ and Safari 3.1.1+

Saft is quite simply the vital extension for Safari, with more features than you can shake a stick at.