On the straight bits, Home Depot has a 4 pack of various sizes for $20 (here in Texas) by Ryobi. Best value I've seen for a name brand. Unless you have a pattern for your control panel, like an old control panel that has seen better days that you can use your flush trim bit with, you'll find it difficult to use a plunge router to make joystick and button holes. I'd suggest paddle wood drill bits for the best accuracy on a cheap budget. I've yielded great results that way.