Marty pretty much says it all. Personally, I'd recommend the newer BASE1-L, that way if you decide to get the CAB1-L later, you can have the quilling whistle. Here it is for $109 at TrainWorld: http://www.trainworld.com/manu...ote-Control-Base-1L/
Here's the old BASE1 sitting at $29.99 with free shipping on eBay right now: http://www.trainworld.com/manu...ote-Control-Base-1L/