I've got a few very minor door scratches and am looking for a good touch up paint for my Black '06 XB

Dealer might be able to get you some brushable touchup. Your local Autocolor store can certainly mix you a pint of the correct basecoat. They have a number of locations thruout Atlanta.

You can also go here: http://www.paintscratch.com/

(though this should be in the 1st-gen section)

http://www.expresspaint.com
Good stuff from there. You can get the touch-up pens, but the small spray can from them matched the BSP perfectly!
(Color code for the Scion Black sand pearl is: 209)

I think you have the wrong sub-forum.

The dealer carrys touch up paint--it is pretty inexpensive....