Calling all electrical engineers

[Clodfobble]

So I want to build this thing.

It's just a flat, rotating, vertical disk on some sort of basic stand (imagine a microphone stand,) with a controller box that has 3 features: on/off, bidirectional switch (that is, in can spin either clockwise or counter-clockwise,) and continuous speed adjustment.

I'm pretty sure the first step is a Continuous Rotation Servo. But then it gets into microcontrollers, and I'm out of my depth.

Assuming I could solder or get a friend to solder for me, am I smart enough to make this thing if I had suitable instructions? It seems like it ought to be pretty easy, with some basic parts from RadioShack.