Should I get the Apple iPhone 5 in 16gb or 32gb?

The time has come and I'm joining the Apple revolution - *sigh* - and already I need help. My question is, should I get the 16gb or the 32gb? I really don't know how much space I need. So thus I will tell you what I will be putting on it and you can tell me what would best suit my needs.

I really love my music, my music database has grown from zero to 210 songs in just a few short months and every time I hear something I like on the radio, I download it. I store the songs currently on an MP3 and the MP3 says that I have slightly less than 2.25gb of music on there right now.

I also love photography and take pictures all the time. I have no clue how much space an iPhone picture takes up, but I can easily see myself with 500 pictures on my iPhone at any given time.

Downloading Instagram will be a given, as I have a slight addiction to it. I won't download game apps but have several organizational apps and lifestyle apps that I will probably download, I'd estimate I will end up downloading a total of 20 apps or less.

So, which size should I get based on this?

Better to have too much space than too little.

Keep in mind though the 5 is no longer being made for close to a year now. Doesn't mean much since it would be updated for a while now, but worth mentioning.

Also the iPhone 6 is expected in under a month. So you could either wait out for that or get another lower model at reduced prices.