What iphone 5 should i get the 16 32 or 64 gb?

Ill have 40 apps 200 songs and 600 pics

32GB

16 is enough
I got many apps and like 1200 songs 16 seems to be enough

Never listen to the stupid labels that say "8GB lets you hold blah blah blah"
It all depends on the file size! From what you're saying, i'd go with a 32GB, 16GB should be enough for what you listed, but 32GB gives you more room for the future.

Forty apps really isn't a lot with how many people put on there phones now a days however the pictures worry me. It all depends on the resolution that the pictures were taken with. The higher the resolution the more space it takes up. If the were taken with an iPhone 4s it would be an 8 mega pixel picture witch requires a lot of space and if you plan on taking more with the iPhone 5 with also has an 8 mega pixel camera will need lots of room to store the pictures. The music really isn't a big deal because that really doesn't take much room up. But apple is supposedly coming out with an "iPhone 6" this July because of how much of a fail the iPhone 5 was. But don't get me wrong I love my apple products, its just the iPhone 5 did not get good reviews like it should have. But to answer your question i would get a 32 gb just to be on the safe side.

32 gb for no future worry.16 gb is quite enough. Don't get 64 gb its too costly.