If you have some spare time and two iPod 4GB nano's (one dead and one working) and some good soldering skills then it's fairly easy to upgrade your 4GB nano to 8GB. And if you have none of these then the "guy" at MultiArcade.com can do it for $225 (hic... includes return shipping). Check it out to see what we mean.
PS: All standard disclaimers apply. Do it at your own risk.
