From the sound of what your trying to do the ipod will work fine.
Thanks can you answer some of the specific questions? Like how long will the ipod last--Iknow there are alot of varibles but on average--and can you replace the battery? Can you give me a specific app or what to look for? And will the ipod and my windows computer sync together?
I have see the devices last anywhere from 2 years to 4. As for applications to store and sync databases I would recommend filemaker pro. It's going to cost a bit of money but it's a great piece of database software. They also have an iOS app.