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'll take a refurb Creative Zen M for only $150, thanks. It still has a full warranty, and plays the most formats. As a matter of fact, I just ordered one :)
Don't be a media playa hata. For PC owners $130 is a great price for a PMP of this caliber.