I’ve found yet another interesting front-end for your collection of emulators.
Maximus Arcade offers more of a full-screen kiosk interface and offers a bit of eye candy. However, for you cheapskates, it only offers a limited time demo for free. After the demo runs out, you need to pay up $20 to register it. It looks promising, but I haven’t gotten around to personally testing it. If you want to share you’re experiences, please leave some comments.