returning to rail modelling

Hi All, I have just returned to rail modelling after a 25 year layoff. Partly as my boy is simply mad on trains, though my interest has never really gone away, just had lack of space for a layout. Boy what a different world the scene is now. Read loads of other posts looking for the info i wanted, but I think i will be asking for help/advice over the coming months years etc. I've been involved with classic cars for many years and the forums are a great place to help others, so i hope by joining this one, others can help me!!!