Hey everybody, I'm new here and have been out of the train hobby since the early to mid '70's. I'm considering getting back in and I bought my first magazine the other day and I must say that things sure seemed to have changed alot over the last 30 or so years!! I will probably be starting with all new stuff since we sold all my old stuff in garage sales over the years anyway. Just a few questions for now. Whats with all this code numbered track that I see advertised? Will it interchange or do you have to stay with one type/code? Also, what is the current hot ticket for powerpacks? Oh by the way, this will prolly start out as a hobbyist type layout but like a lot of things they have a way of becoming way more then you envision when you started. Not looking to spend a ton of money, maybe a few thousand or so. Thanks for any and all advice!!