How long are you planning on doing this giveaway for? There's a patchwork farm in the city that I volunteer at whenever I have time off on a Tuesday. They are creating a community around sustainable food growing and I'd be up for making a video on that the next time I can get time off to volunteer.

edit: here's the organisation they're part of:
http://www.growingcommunities.org/about-us/

edit2: I just re-read your post and you said the first person. Do you mean first person to get the video edited and completed or first person to raise their hand and say I'll do it? If the latter, I'll do it, if you'll accept me.