Custom editing functionality for SharePoint web parts

Question

I am trying to develop web parts with custom functionality for editing for normal users. In the chrome bar there would be the same sort of controls as you see in the top right of your browser (except with a triangle instead of a line).

• Triangle is to minimise/restore (as in OOB, but with different display) Square is to maximize a new module type window, probably with an iFrame displayed in a module type view window with jQuery with an additional field to add the url to where it should go
• Cross is to delete web part The functionality is required across a few different types of web parts including calendar, CBQ, Data View, CBQWP, and would ideally be a part of a custom chrome that would be added to them. I don't do back end code so I'm finding it hard to get my head around how someone would put together the functionality. Unless it's simple it won't be me writing this functionality. I have Enterprise 2010 for development, but the people using the control would only have foundation.

I'm basically after opinions about how this would be done. I think it should be a custom control written into the chrome, if that's possible. Does that seem feasible or is there a better way of doing it?

I would really appreciate any advise, even if it's just that it would be better to skin the existing chrome and leave the functionality as is. There's leeway with the functionality so at this stage it's deciding on how best to do it if it's possible or not too bother going down that route.

Thanks very much in advance!!