maniacalrage:

Tip: Make Safari 4 Look Like Safari 3

Want to get the nice new rendering speed and features of Safari 4 but not the new interface? Drop these three commands into Terminal:

defaults write com.apple.Safari DebugSafari4IncludeToolbarRedesign -bool NO
defaults write com.apple.Safari DebugSafari4LoadProgressStyle -bool NO
defaults write com.apple.Safari DebugSafari4TabBarIsOnTop -bool NO

This will give you the old Safari 3 interface (including tabs below and the old loading bar) as well as the older Safari 3 behaviors for the tab bar like double-clicking dead space to create a new tab.

I’m happy again.

Source: maniacalrage