Let the hive mind of Engadget get that for you.
"As someone who doesn't reside in the USA, I was wondering what would be the best way to get internet for my computer in the US for a couple of weeks? If it were Europe I know I'd look for some prepaid data. Is there anything similar offered by American carriers? A MiFi or a data SIM that I can tether from would work, but I'm trying to maintain a tight budget. Help!"
Check out antennaweb.org for antenna recomendations (its a little buried, but you can enter your address or zipcode for maps to antennas, and recomendations accordingly).
Also AVSForum.com has a forum for local HDTV reception with detailed threads on every major market.