Aqua-Soft ForumsThere have been a number of questions surrounding a transparent Leopard OB theme. There IS a way to create a simulated objectbar, but (for this mod) you must have the grass Leopard desktop wall installed.
A screencap of what it looks like installed: http://www.markraats.com/leopard_desk.htm
Goto this page http://www.markraats.com/ObjectBar_Transparent_Emulation.htm and get the information on what to do and some of the graphic elements you need.
NB, This is not intended to be a perfect app, but a simple solution that might prove useful to those looking for an easy option.