Can I have a 32gb installed into my 8gb iPhone?

I just bought a 8gb iphone 4 I was wondering if I can get a 32gb chip installed in it if I go somewhere and have them put it in for me. Is it possible and how much do you think it is. I just got it and I don't want to get a new one. I didn't realize 8gb really isn't all that much.

Added (1). My phone company is Verizon, how much do you think it would be to upgrade to a high GB? Like 16 or 32? I got my phone last week

As far as I know it, iPhones are really not upgradable, unlike other phones they do not have an expandable memory. 8 GB really isn't much at all, I don't even know why they sell it that low because if you take about 1 - 1/2 hours of video, and some pictures, have some apps on there its full.

You can't put any memory card in the iPhone. If you want to upgrade to a higher capacity iPhone 4S, you've to pay the full retail of the phone as you just upgraded last week and not eligible for upgrade right now.