Swimming Biomechanics Workshop for Triathletes

I went to this workshop last night (at Perth Integrated Health in Balcatta) and met Kareen Preston who is a high performance swim coach - has 3 swimmers going to Olympic trials.

Whilst it was a dry session (ie. seminar) I picked up some tips that I tried to bring to my training this morning - and I actually think I've had a breakthough! Appears my arms have been too straight through the pull stroke, where they should be bent. Certainly felt helps different - I actually felt a bit more like the coaches look when they demonstrate a stroke - and it felt like I got more power and had stamina through my sets so if that = speed, I'll be a very happy girl. Time will tell I guess.

Have never had a proper video swim analysis done - any ideas on cost, recommendations, Perth NOR?