If you need any help ref MX give me a PM, I have raced MX for the last 8 years till last year and gone road racing.
Its a great fun hobby, but RC is pretty cheap compared to it!
Best bet is get yourself along to your local club from the ACU website and have a chat to the other Dads and keep an eye out for a bike, dont buy a cheap bike as it will cost you alot more in the long run, these bikes get thrashed from day 1 so buy as new as you can afford.
Just be preppared to have your wallet drained!!
