The Original Poster stated they were using a SFII cab.. is it intact, JAMMA wiring, arc monitor and all? Then a JPAC (also from ultimarc) might be a good way to go and save you some wiring, assuming you wanted to run on the original arcade monitor that may or may not be there =P (why you're at it throw the arcadeVGA card in your cart if that's the case)
I haven't purchased it yet, but I found one for a pretty good deal. I have no idea what a Jpac is, but I will I be able to add another button? Is it easy to wire the coin dispenser?
I'm going to look into the Ipac.
btw, I have had no problem with X-Arcade, I'm not sure if I'm going to run any other consoles especially if I decide to keep the original arcade monitor.
ipac linkagejpac linkageA J-pac slides into the jamma harness ( the harness where SFII pcb used to plug into and breakout into 90% of the connections, from most of the controls, to audio, to video, to power sourcing...) The j-pac has keyboard encoder functionality like an ipac, but has bonus arcade monitor max sync protection, video amplification, AND slides right into that JAMMA connector. Less muss, less fuss (if you are going the arcade monitor jamma conversion route, that is)... all of those goodies are at/from
http://www.ultimarc.com The other "bonus" to going the jpac route is your are less likely to make radical changes to the cabinets setup, i.e. preserve the ability to throw the SFII (or other similiar jamma boards) back into the cabinet... although why you'd do that after MAME'ing it is beyond me... but hey you never know.
*shrug* YMMV but thought it was worth mentioning, depending on the approach you plan on taking for your cabinet, and the completeness of the cab you are acquiring...
good luck!
Rampy
PS regardless of if you go ipac/jpac, if you keep the arcade monitor people highly recommend (and later this week, I'll be able to highly recommend it too, I believe) the ArcadeVGA card from ultimarc. ( working JAMMA cab + ArcadeVGA + Jpac == least muss and fuss for a "quick" MAME cabinet )