Yoni,
I agree with you about this.
This question has been asked many times but none have answered it.
There are users here that prefere sarcasem over straite answers.
So here is my answer.
This is only my opnion, there are here that will disagree with me.
If you know electronics than things are easier.
The next step is to learn how to use and program a microcontroller
I suggest starting with PICmicro chips from
www.microchip.com
read about PIC18f452, they also send free samples.
here is a good site that explains about PIC
http://www.voti.nl/swp