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!"
I used to work in Home Theater at Best Buy. Yes monster is overrated. While I worked there I would tell people to get their cables online. Even the Dynex, which is Best Buy brand, were over priced. A 6 foot HDMI cable in Dynex flavor costs $60. With the BB employee discount, that cable costs around $5. That's $55 of profit for BB.
Needless to say, Best Buy didn't like having me around. I can't say I like being around BB when I worked there. If you want to know how to not to run a business, work for BB.