Anyone have a good source? I know they used to be available. 

I have an old Atlas hand set that was made by Lenz and is compatible with Lenz DCC+, however I need to replace the cable for it.  It has a telephone style connection on the handset and the standard Lenz connection on the other end is a Din plug.  

This is pretty much the same as the cable used by the LH90.  The two questions are as follows were can I get this type of cable at all and can I get it someplace relatively cheap?

I am not very knowledgeable when trying to manage the electrical aspect of my layout I am building. With that said, I just purchased an NCE SB5 booster to use with my Power Cab system. What is the best way to set up some type of short circuit protection system to keep the booster from from burning out? Are there alternatives instead of using NCE EB1 or CP6 circuit breakers? Also, any information on how to set up such a system would be helpful.

Thanks for your time, Mark  

I am planning on running a 12 volt accessory buss to power leds and accessories for stuctures, small motors and other animations on my lay out. I will be using arduino pro minis for some of the animations (led and motors). The arduino power in states it will take up to 12 volts. It has onboard regulation to knock it down to 5 volts. This will probably cause the pro mini to get hot. I was thinking that if I built a breakout board with an LM7805, tied into the 12 volt buss. Ground would be common for both 12 and 5 volt supplies. Will this cause any problems?