Addendum:
What I have learned and want to share..
First off, do NOT buy these joysticks from newegg or anybody else who sells them
http://www.newegg.com/Product/Product.aspx?Item=9SIA4WA1HZ1752They are complete ---steaming pile of meadow muffin---. Oh sure, they look cool, but the control on them are very sloppy. About the only way to get them to function half way decent is to use the restricter plates set on 4 way mode. My son said it's hard to control when he plays super pacman, Pacman, etc.. I played Donkey Kong Jr. and had a hell of a time. So I went ahead and ordered a couple of Mag-Stik Plus joysticks from ultimarc.com. These made the most sense, since they are capable of switching from 8 way to 4 way by pulling up and turning. Ideally, I'd like to purchase some J-sticks or servo sticks with the RGB sticks and a PacLED64. But pricing that all up.. it doesn't really come within my son's budget range. I'm paying for the Mag-Stik Plus joysticks myself since I am the one who purchased the crap LED joysticks in the first place. It wouldn't be fair to make my boy pay for my own mistake. So I'm thinking maybe later on... like around Christmas or in January when he has his birthday, I'll get him the RGB servo sticks and RGB concave buttons with the PacLED64 and we'll REALLY make that cocktail cabinet rock!!
Second... DAMN that was fun!! Think I might take all those spare joysticks and buttons left over from the swap and make another one... like maybe a bartop type MAME cabinet for my office. No need to purchase another iPac. the recroommasters.com kit came with 2 of them, all I'll have to do is pull the second one and wire all the wires into the first one and I'll have the spare iPac to use for another project as well... Now all I need to do is find a bartop cabinet kit to throw it all into. Hell, maybe I might do an upright cabinet.. who knows.. all I know, is I want to make another.
My son absolutely is enjoying his cabinet, even though the joystick controls kind of suck. He knows I have ordered new sticks and knows he'll just have to put up with what he has got until they arrive. No biggy. Even my WIFE enjoys playing on it... her game is Galaga. So maybe... just maybe... the next project I do might be for the ole' lady

Third.. I noticed that the monitor can be raised just a bit more.. like maybe about an inch.. So I'm gonna make a trip to Menards and get some more washers and some longer bolts then what came in the kit and raise it up till it's about flush with the underlay board (OCD kicking in). All in all,
recroommasters.com offers an excellent kit. Great way to make your very own arcade game!!