Hi all ! Well I will soon be moving to the US for a little less than 2 years, and I need advice on selecting a mobile carrier, and a plan .. My requirements are the following: ---> I need SIM only, no phone, as I plan to use my Nokia N73 there. ---> I need a GSM and 3G supported network ---> Should give me access to the internet on my mobile. Questions: 1) So which service is better ? AT&T or T-Mobile ? 2) Do either of the above two carriers offer video calling option ? 3) Please also tell me if I should just get the Prepaid plan, or should I get a contract. My mobile usage patterns are somewhat like this: ---> I generally don't call that much. Maybe on average, I may make about 0 to 5 calls a day, each lasting between a minutes or so, or maybe 3-4 minutes sometimes .. ---> I generally receive about the same number of calls per day too .. And of the same average duration too ... ---> I may call internationally (to my folks in home country) once every one or two days too, with each call lasting about 2 to 4 minutes .. Same goes for receiving international calls too. ---> Don't message much too. Maybe just 0 to 10 a day, and receiving about 0 ~5 messages a day .. ---> But my internet usage maybe a little higher. I like to remain connected to my email inbox, and use the internet on the move, so I may need an unlimited data plan (how much would that cost?) So which should I go for ? Simple prepaid SIM only, or a SIM with a Contract ? Which would be cheaper for me ? 4) Lastly, I heard an AT&T SIM costs $25 ... Isn't that too much for just a SIM !?? Any help here would be greatly appreciated