these tools
you just have to pry the metal back off the plastic front...NOT the front off the back. from there all you need is a size 6 torx screwdriver (available at sears for like 3 bucks) and some needle nose pliers. remember which connections you disconnect cuz you have to reattach them. the little black thing is a battery, the silver thing with blue around it is the hard drive, and the green thing is the circut board. just make sure you dont rip apart ribbon connectors and its easy...
...i'll do it for $20, plus the cost of shipping the iPods each way.