Computer Museums

I have been thinking, probably along with most everyone here, for the past couple of years about how to open a computer museum. The major stumbling block is, of course, funding. But that aside, what type of things does this group think a computer museum should consist of and what should it offer? I am talking here about a physical location as opposed to an online web site. The type of things I am currently considering are: What should be on display considering: 1) space limitation 2) Mainframes, minis, micros 3) What would most attract visitors 4) What would most attract funding :) Other activities to make the museum more than just a display of computers: 1) Computer certification classes 2) Availability of documentation for those doing historical computer research 3) Newsletter 4) Information on promoting computer collecting 5) Being able to provide docs and software (subject to copyright restrictions of course) I am thinking of quite a few other things but this will do for a start.