Editing should be available to everyone, stops people looking complete retards, some people need that bit of help Keeps the forum tidyer. If people abuse the editing button to cover up things that privilage can be taken off them surely like been a banned trader.
Avatars and sigs should stay the preserve of those who pay, as should inbox size and what not.
A thorough going over of the How-to's a set way to describe them e.g. for mk1, mk2, GP etc etc. Making sure they all work properly, so its a proper resource worth paying to see. And maybe a HOw-to drive, and get people to cough up some info and photos for the benefit of everyone. Lots of people say how they want to help in any way poss.
Merchandise is a long shot and should be explored pending other areas been sorted first.
Got lots of things to say, mental block now and my Chickuns redeh!