Default [Q] Questions about unlocked Note

I want to purchase the Galaxy Note unlocked and purchase a SIM card and prepaid plan through Straight Talk. My questions are can I get a pre paid plan for around 50.00 a month for talk, text and data. I will have wi-fi to do about 75% of web browsing. I will not transfer a number. Will I be assigned a number from the SIM card provider? What can I expect to do if I get the GN right out of the box?