J2ME deployment question

I'm designing a J2ME networked application. It uses socket to achieve internet connection. I'm trying to deploy and run my application on a physical device(cell phone). I have a couple of questions.
1. Do I need to buy a Java enabled cell phone and sign a service contract with a wireless carrier? You know it's only a master's project and what I need is to make a demo when doing presentation. It doesn't make sense to sign a whole year's contract with a service carrier.
2. What kind of data cable do I need to downlaod the application from PC to cell phone? Where can I buy it?
I will very appreciate if you can answer my questions or give your recommendation on what I should do.

Thanks and Best Regards
Jiahui wang

1. You need a phone and a contract if you want to show it on a real device. But for demonstration, you just use the software emulator.

2. You do not need data cable. You need GPRS connection on your phone to download the java apps

Thanks a lot! I really appreciate that.