If you already preordered the 32gb then stick to that?!
I got a 16gb and am happy with it. Loaded my favoutite apps and 2 gb of Dropbox magazines. And still have 10gb free. Although I don't keep any media on my iPad. I stream everything. And don't play many games. If I do play a game I'll usually delete it once I'm bored with it or have finished it.