Best practices question

Hello,



Just started with the trial today I have what I think is a general question before I start making major design changes. I am going to completely customize aspects of all the pages. For example, I want to combine top menu and quick links had have it show where quick links is now which is upper right. Should I be editing top.tpl or should I be making a new file called top.override.tpl and put it in the hooks/index folder?



Also, is there a reference some where which will tell me the names of variables such as “$quick_links”?



Thanks.

Use hooks wherever possible.

Thanks.