Replying to Help me get editing right

I have a go pro hero hd. I usually shoot in 720p 60fps. I am on a Mac and usually use fcp7. First question is about compression and making clips look good. Whenever I use applepro res or something like that it makes my clips look very pixelated when exported out of final cut.
I guess I just wanna know the best way to keep my clips looking the same all the way thru the production process.
Am I using the right software?
What's the best compression? If any
Or is it anything within final cut.
Sorta but not really an editing noob.
Thanks guys
Take it easy