Sorry to dig up a old thread but this was the only one on here that I saw that had a good picture of what I wanted.
I recently purchased a NovaGemCDR from Groovy Game Gear.  I am looking to fill a hole in a cocktail cabinet that I think was a power or credit button at one point.  I have filled in the hole to make the task easier, since the hole was not the right size anyway.  I would like to flush mount my button like Unstupid did.  
I have a couple of questions.  The hole for the post is listed as .925", what would be the best drill bit for this? 15/16" is a little bigger than that, so go smaller and sand it out?  Seems like a very tight circle to cut with a jigsaw.  
Also wanting to know the best way to cut out the recess.  I have a roto saw and cutting bit and was thinking this might be a good way to go.  Any thought on the idea would be appreciated.