Using ipod touch for photography. 32 or 64?

[MacDarcy]

I was planning to get my first DSLR, but decided to get an iPod touch 5th gen first. Basically, I want to see if I am worthy of a DSLR. I want to use the iPod touch to teach myself composition and being creative with less before I plunk down a lot of money on a DSLR and expensive lenses.

I've seen some of the Flickr posts of people using the iPod touch as a camera for street photography and was impressed. With its new 5 megapixel camera and larger screen, it's not a bad little camera.

I am definitely going to get one. But I am torn. Do I get the 32 gig? Or spend an extra hundred for the 64gig?

I will only be using the touch as a camera, and don't plan to load my music onto it. I currently don't have a Mac, so I can't unload photos either.

I will load a bunch of photography apps on it however, and plan to shoot tons of pics and video.

I went to the apple store in my area, and noticed the 32 gig display models said they were actually 28gigs and were using an additional 6 gigs for apps and photos. So already they were down to 22 gigs.

Will 32gigs be enough? Or should I go for the 64?

Thanks!