I have a relatively pedantic idea that has been bounding around my mind for a while and thought I would float it by the CF “technorati” (yea yea I know there’s site and culture around this word) for a sanity check.

So, for around $100 I can pick up a 100G (or more) portable USB external hard drive. My thought is that I would get said drive and use iTunes to load my entire CD collection. Using a very basic rule of thumb that one minute of music uses one meg of space as an m4a file, I should have no problems storage wise getting 1500 CDs into the drive and have plenty of space for more. Even thought many CDs are less than an hour, and some are more, I over estimate 1500 CDs as 1500 hours, which is 90,000 minutes or 90G. Using this method, in reality, I probably have between 75 and 80G of music.

This all seems reasonable (except for the time needed to load 1500 CDs into iTunes) but I want to be sure I can use this devise on any Windows based PC with iTunes.
I can bring to work, use it at home on any PC, etc. I know I would need to change my location settings in iTunes, but that’s simple.

Am I making the correct assumption? If I am, are there any brands I should look for or in turn avoid?

Help a middle aged man out here…