Ok managed to get hold of an old Primal Rage cab which was running Tekken 3. I stripped out the wires, put in a JPAC, P4 1.8ghz machine, 80gb HD and packed it with all the latest 1.09 roms. I even got the Daphne roms and the PinMame roms, but I have not put them on there (lack of space) and I would not know how to get them to go anyway (future project).
So far, I have re-wired the cab and added a pause button (or as I like to call it "grab another beer" button). I also have a button to go into the config of mame when running a game so no keyboard or mouse is needed.
I am kinda new to this, but it's going well. I bought a couple of Act Labs USB light guns, but so far I only managed to get one of them working succesfully (more help needed).
I also put in a set of powered speakers then re-wired the old cab speakers so it would sound nice.
So far so good. I intend on re-doing the T-moulding (I bought 30ft of it in red) and changing the joysticks for some new ones.
Apart from that, it's a nice tidy cab for my first attempt at this. Really good fun.