Hi, I'm 10 years old and interested in getting an HO set. I currently own an O gauge set-up (MTH) but do not know anything about HO. What brands do you recommend I look at for a nice starter set. Who has the best track and trains? I've been to several dealers and looked online and it's a little overwhelming. I want something that is good quality, reasonable and that I can expand (like being able to add automatic crossing gates or side tracks and stuff like that.) thanks.