Please, please, please, please, prettypretty please?????
http://webtreats.mysitemyway.com/free-wordpress-theme-translucence/
And check out the demo: http://themes.mysitemyway.com/demo/translucence/?themedemo=translucence-lights
This one is free!
Offers customized background capability!
Widgets!
Menus!
I totally <3 the balance between the background, and the opaque content area. The semi-opaque sidebar is genius. AND it looks GREAT on smaller screen resolutions!!! :)
For this theme, I will grovel if I have to.