Thanks for the advice Jeremy.
I’ve been using mpeg streamclip to do this in the past but will look into the other possibilites you recommend.
I get you on the transcoding being processor intensive,but there is one good thing about that stuff, which is you can set it up to batch encode and just leave it overnight. If I am willing to do that, would I be able to do the kind of cutting I speak of with the 13″?
Envy your commitment to the 17″ but have to say that I’ve made the opposite journey from 15 to 12 to 13 and wish there was still a 12!