Limit Usergroup Manager Perms

[kall]

After a wee while looking, I couldn't find this as a default option so..

Anyone want to code up something that will achieve the following?

• User can access Usergroup Manager but not alter their own groups
• User can access Usergroup Manager but not assign other users to specific groups

ie: I am added as a super mod by the site admin. He wants me to have the ability to add users to a Verified usergroup, but doesn't want me to be able to change my own group or add users to the Super Mod group.

Definitely doable, who wants to take up the challenge?