I'm just getting into reselling and I would like to customize my users control panels so that some customers only have access to view usage statistics, and I admisister all other aspects of their sites for them.

I'd like to know if it is possible to customize different control panels like this, and how time consuming it would be for someone with no previous experience with it to do. I asked the main host that I am considering about this, and he said that he could send me his custom (Cpanel) skins and I could modify them however I like. I'm just wondering how difficult this would be. Where can I find iformation on this?

In addition to info on doing this in Cpanel, I'm also wondering if this is possible in the other major control panels (PLESK, ensim, etc) and if it would be easier or harder with them. Thanks.