In reply to Plan Airborne:
Pop up the road to North Wales and try Phill Geroge, hes a great trainer and everyone I know that has used him has learnt a ton and can't recommend him enough.
http://www.phillgeorge.com/
Or Andy Newton always has courses going, another top guy
http://www.andynewtonmic.org/
Also look at the MLTA website which may help you get your assessment etc better prepared for
http://www.mlta.co.uk/index.php
Enjoy it, it's a fun course