So... about a solid state drive. How much would be enough? I know "all da romz" go well over 100 gigs, but lots of those games are crap. How much would "only the good stuff" take up?
I suppose that question depends on your game tastes...
who can say? i recently tried using a USB drive as a hard drive on my cocktail. Didn't work because i didn't know what i was doing, but everything on the original drive only took up about 750mb. About 200 games, virtually none that are in the megabytes (a couple of the more modern shmups mostly), win98, and mame itself...
I've given up on that and now have a brand new 80Gb IDE drive (smallest i could find new). I reckon i should get more than 10 years out of that, considering the original 4gb drive still sometimes works and it was from my PC i built ten years ago...