Not sure if this has already been suggested, but I think it might be worthwhile to have a "Classifieds" section.
The Musicians Forum is pretty much geared toward , well.... gear.
The Sales/Trades section is for exactly that - selling & trading..
Sure, there's sites like bandmix, gumtree, squeezebox, etc. but lets face it - if you're looking to set up a metal band/project then being able to advertise in a place exclusively for like minded people would be a massive bonus.