Hi folks. I have an MTH John Deere PS/2 set (MTH 30-4094-1) which came with a 75 watt transformer. I have ordered the DCS upgrade (50-1001) and an additional engine (MTH 30-2283-1) to expand my layout. The DCS will supposedly allow me to control each of these engines individually on the same layout. My question is - will I have enough power from the existing transformer or will I need more power in order to have both trains running? I plan to have each engine hauling about 8-10 cars. The second train will consist of several lighted passenger coaches, which I assume could play into the power needs as well. By the way, the layout will be created using MTH's RealTrax. If 75watts is not enough, how much will I need? The DCS upgrade, not to mention the additional engine & cars has already blown my 'hobby budget' through the roof, so I'm hoping I don't need to also add a big expensive transformer to this picture.