Wireless Mobile internet Card Help

[NIPRING]

My parents are taking a much needed vacation. I suggested to my mom she take the laptop i bought them a few years ago (a rarely used 17" PowerBook). And of course they will need a mobile internet card. But its not like they are jet-setters or use that laptop outside of the house very often, if ever. Their mobile phone carrier is Sprint. But it looks like all their internet card options are for a 2 year contract. I'm looking for something for either a very short or no contract. I even checked through AT&T, which is what i have, but everything seems like a 2 year contract. They get a vacation once every two years . Ideally, i was hoping for a one month data cost and either "renting" (??) an internet card, or buying one if they had to. Suggestions please?
Thanks

 

[Salmar]

I don't know how long your parents will be gone for but you can get the sprint mobile broadband USB card on a 30 day trial offer. You just pay for the 30 day period and then you can cancel without a 2 year contract.