In reply to Removed User:
depends on your budget and if you are PC or MAC
PC? moviemaker or the gopro studio app are free, various versions of sony vegas can be had from about c$80upwards (you're in canada i think?) and adobe premier elements v13 is about C$120 on amazon.ca
if you are planning on doing a few movies, go with premier elements or vegas... but make sure the version you get can handle the files from your gopro (the newer ones will probably be fine)
on a MAC loads of people seem to get decent results with iMovie
don't buy something that's too cheap, one of the reasons vegas or premier elements are so good is because of the instruction and help from masses of users out there. don't underestimate how important that help can be
Post edited at 10:08