Witch IPhone 5 should I get?

Hi I'm thinking about getting the new iphone 5 but I don't know witch one to get. The iphone 5 16 gb or the 32 or the 64? Witch one fits my life better? I don't take that much picture I only take about 50 pictures a year and record about 10 videos a year. I don't go on the internet that much either cause that what my laptop for so I don't need Wi-Fi. So what should I get? And how much does each one coast? I have T-mobile

Added (1). Yea ik I have like a lot of games on my ipod. I have 4 page worth of stuff. And there other games too on it. I play a lot of games I play about 7 hours a day.

Tmobile doesn't sell iphone 5 but you can put a SIM card in it but besides that it sound like you should get 16 or 32 if you play phone games a lot or have a lot of music you want to put in

Since you barely do anything… Just get the Iphone 16GB model… Tmobile has the iphone, but it doenst have a discounted contract price… Instead, with tmobile ONLY, you have to buy it at full price. Apple has agreed to let Tmobile do that, but not offer its customers contracts or it. So NO $199.99 with 2year contract discount… Just $599.99 and no contract… The 16gb Iphone 5 is $599.99 + tax

IPhone is not just about videos & pictures. It depend on your games, apps & music. If you just like a bit of apps & music then go for 16. But if your stuff get little loady then go for 32.