Jinkster,
There are tapes on the market - but they tend to be crap...the ones I have are even WRONG.
I don't see much point in listening to USA R/T (which is almost a contradiction in terms) when trying to learn the UK procedures.
If you really have read (and learned) CAP413 - I would suggest the best bet would be a few hours groundschool at your local club.
If they don't already offer such a programme - start one. Go find an ATC'er (advertise for one on pprune???) and get them to do a couple of evenings.