wow, that does sound nice. I def have a couple games i deal with audio problems, its frustrating but usable. I'm currently using soft15khz. The only refresh rates i see available to me (when adjusting games under mame32ui) is 60 or auto. Kinda sucks.
I'm OOOOK on resolutions, but i def am screwed for pacman, frogger, and other verticles. I can't get 288x240 for some reason. My monitor scrambles. I know this is more about my video card though. I also have to pick other resolutions that dont' match 1:1, but i thought this meant i was still 1:1, and it wasnt' stretching. This is the kind of stuff i've been confused about.
The other problem i SORT of deal with is that since my monitor is analog, some resolutions just aren't centered, etc. It'd take me messing with pots for EVERY config, which i'm just not going to do. Does having perfect resolutions help with this problem?
I'm currently running an onboard nvidia geforce 6150 via the chipset. It's a mini pc (asus pundit p1-ah) with just PCI slots available for expansion

So with GroovyMame, I'd be able to have a TON more resolutions and refresh rates available? Is there NO way to run it on anything but an ATI card?