Today I stumbled upon a website which offers free psychological personality inventories. SimilarMinds.com

I highly recommend it. If you'd like to see my results, I've posted them on my website:
http://personal.caseymelcher.com/index.php?entry=0

My short test snapshot:

"rarely irritated, positive, tough, non phobic, fearless, likes the unknown, self reliant, high self control, confident, trusting, strong instincts, prudent, optimistic, willful, likes parties, prefers a specialized career, takes charge, altruistic, strong, high self concept, adventurous, practical, thoughtful"