This might sound like a bit of work and I am not sure if you plan on moving this anywhere in your place but if I was to go with the route of having a wall mounted LCD/Plasma and a control panel podium I would fish wires and use a wall plate like this:

This way you don't need to have the wire hider kit for just one wire I am assuming, HDMI, which takes care of picture and sound via TV speakers. This way if you need remove the podium you can easily do it without leaving any wires dangling or hook up other devices to it such as a bluray player? The other alternative is to build the rest of the showcase cabinet

This will solve this wiring hiding and marquee issue.
As for the front end, you are on a good start so far with Maximus Arcade. Now just find the images for the marquee, game stills or even 30 second video previews so it looks like this:

Another front end that is really nice as well is Hyperspin, download a few of the MAME themes for some of your favorite games and give it a shot. It is free to a certain degree, all they as for is a small donation to download all their themes and art packs or else if you don't mind waiting 3 minutes between each theme. I have over 300 roms and that would take me forever to download so I just paid for gold membership. Either way Maximus and Hyperspin were both money well spent in my opinion since it enhances all my projects so much and when friends come over they just

If you have any questions regarding either front ends feel free to drop me a message. Hopefully this summer I will finish up my showcase cause it current sits like this:

Now I know why everyone says work on the control panel last cause one you get it 100% functionally you sort of put off completing the rest of the cabinet and move on to other projects. Good luck and post more detailed pics when you get a chance.