http://www.web-us.com/brain/braindominance.htm
The breakdown after the test is fantastic. I'm ALL the things it mentions i am. It says its not accurate, but it was 100% for me
There's a couple of grammar problems, and i found 1 or 2 diddn't make sense due to mixed up words. But take the time to read and understand the questions before yo uanswer
My particular favorites were:
Nonverbal: Processes thought as illustrations.
Random: Processing information with out priority, jumps form one task to another.
Holisitc: Processing information from whole to part; sees the big picture first, not the details.
Post some of your results

will be interesting to see them
p.s My result was
You responded as a right brained person to 16 questions, and you responded as a left brained person to 2questions