I'm looking to buy an iPad 2 (please don't try to convince me to buy an iPad 1 ). I'm trying to decide on what size I need (all jokes aside). It comes in 16, 32 and 64 GB. I'm going to be instructing and photo-flying a lot for my job, so I'm going to use it to pull up lesson plans, my scheduler, and other things of the sort. When I'm out flying, I'll use it to view sectionals, enroute charts, and I plan on buying a few of those fancy whiz-bang apps that show your GPS position on IFR plates and what not. I'll also use it for recreational and fun purposes. Any input from people with iPad experience on here as to which size I should buy? Would 16 be enough for my needs, or should I go all out here?

Thanks