Yesterday, I went to my local hobby shop and saw ane guy trying one loco with sound. Really cool, with realisct sounds like the diesel engine accelarating as the man turned the knob, decelarating as well, air from the brakes when the loco stopped, horn, bells... Then I came back home and started to search on the net... but my knowledge on this subject is... well, let's face it... NOTHING! Then I thought.. The-Gauge will be the answer to my doubts... Well, what do you guys know about sound system for N-Scale? cheap? good, a thing not to buy? I've seen on shamus site a thing about sound, but it's good for environmental sounds. I'm looking for somthing that could make me feel like I went inside of a loco. What about a good power supply? Some one told me about Gaugemaster... Thanks for your time!