Mac OS X Terminal.app
Solarized Color Settings

Installation:

Hack color support for Snow Leopard required or not?

1. Install SIMBL from:
http://www.culater.net/software/SIMBL/SIMBL.php

2. Install updated "TerminalColors" SIMBL plugin
https://github.com/timmfin/terminalcolours
http://github.com/timmfin/terminalcolours/raw/master/TerminalColours-SL-64bit.zip

( see blog post here for details:
http://www.byteengine.net/custom-colors-in-snow-leopard-terminal-64-bit )


The above runs in both 64 bit and 32 bit mode. If you have trouble using it, 
you can also try the older 32-bit mode only TerminalColors plugin below:

http://blog.fallingsnow.net/2009/08/28/fixing-colors-in-terminal-app-on-10-6/
http://cloud.github.com/downloads/evanphx/terminalcolours/TerminalColours-SL.tar.gz
and open in 32 bit mode
cf
https://github.com/evanphx/terminalcolours