The Day of the tentacle themed is my latest and made a few changes from the Neo Geo Style(thicker side panels, 2.1 powered speakers instead of USB powered, bezel art instead of a hard plastic trim). the design was a 2 player bartop instructable I found on google with a few small changes to suit the screen I had. I also cut some extra panels with a couple hinges on the back for access and a removable panel underneath in case any of the micro switches needed replacing. Im not very good at woodwork but found this was an enjoyable way to improve at it. The art I just printed on gloss paper at home and tiled them(slight lines maybe visible in the photos) onto the cabinet, it looks ok considering how much cheaper it is but I would recommend adhesive vinyls for a better look.
In regards to tools the most important for me was a square, drill, jigsaw and circular saw.