I ordered the full body kit from PhantomSkinz. Came out to a little less then $20 with free shipping. I didn't want to wait so I paid the $5 for Priority shipping. Use Spring20 for promo code
I'm personally using the protector that came on the phone until I hear from more people that have had Gorilla Glass in real life scenarios for a long time. If it is as good as I have seen on YouTube, I might just go naked.
I had a Droid (with Gorilla Glass) from November 2009 until I got my G2x. I never use cases and am clumsy and careless. By the time I got rid of the Droid the whole phone looked like absolute crap. Except the glass, which was without a scratch. Anecdote != evidence, but take it for what it's worth.