I'm now contemplating a gauge change to On30 (which I've always thought looked like good fun) after having zero success with my 009 (4mm to the foot, 2foot 3 inch gauge) layout planning. This depends on the availability of outside frame chassis, which I plan to use with the vast majority of my motive power. I've known about the bachmann petrol (gas) mechanical locomotive for a while, but that's about as far as my knowledge extends. I figure that trawling the internet for this information would probably be a lot slower than just asking the people in the know, so that's why my question is here. Steam, diesel, gas, oil, bunker c, sugar, lard, I don't mind what it runs on! I plan to have a wide and varied mixture of motive power on my layout, so just suggest away. Thanks in advance.