I got a 3-axis kit which includes a Gecko G540, power supply, and Nema 23 380 oz-in stepper motors. Now I need to buy the e-stop and limit switches. I've searched and read several threads on limit switches and e-stops, but I haven't found which ones to buy or where to get them from.

I've read it is better to get the e-stop that locks close when you hit it, and you have to twist it to unlock it, but where do you buy those at?

I've googled micro-switches and limit switches, and they range from $2.50 to over $100. There are also some with a roller on the lever/arm, and some switches don't have any rollers.

I'm in the states, TX actually, where would be a good place to get limit switches?

One last thing, I know I need 2 limit switches for each axis, so that is 6 switches. I've read where some are using them for "home" also. Would I use 1 of the limit switches as a "home", or would I need to add another switch to each axis (for a total of 9 limit switches)?