I started to straddle the crazy world of pro-arcade sticks and buttons yesterday. Got a used iCade for dirt cheap and went on to order a Silent Sanwa stick, 8 Silent 30mm buttons and some fancy balltop replacements for a good measure. It's apparently really easy to replace the (noisy and crappy) default iCade buttons with these ones. The stick replacement seems to be easy too, but man is this stick expensive. I really wanted the whole thing to be as silent as possible though.
What's everyone's suggestion for the type of the gate if my two most played games on this will be Dodonpachi and Metal Slug series? I have square, octogonal and circle gate available.