Don't you touch that HUD!!
Seriously the artwork on the hud is on of my favourite parts of MazzleUI. No changing it to another addon.
In terms of the barmods, I think that using dominos is the way to go, even though it doesn't work in the same fashion that Bongos did, but things have changed since then. No matter what, you'd need a mod that handled the mind control/pet/vehicle interface. It was pretty annoying to deal with the Karazhan chess event/BT Teron Gorefiend bars not working properly.
Action ID's aren't
thaaaat important are they?
