Ok, so I'm drafting a letter to send to Sofawolf press about volunteering at their booth during the 2012 Comi-con. Here's what I have written so far, I don't have very much experience writing 'professional' letters, so can anyone offer some advice? Improvements? Anything to add or take away?
Dashes are there cause' I like my privacy from you all

Jeff Eddy,
You and I had conversed at the 2011 San Diego Comi-Con. You had told me to e-mail you in May about the possibly volunteering in 2012. If this position is still available, I'm curious on what would be required of me.
I live locally in ------------ and have my own transportation.
I am able to do, but not limited to; set up and tear down of the booth and 'holding down the fort' during the convention.
I'm looking forward to your response.
Sincerely,
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