Lots of good custom boards out there, although most are based on one of my designs or a few others.
Fins, buy a good custom board and it will come with good fins.

Traction, wax or wax alternative.
Traction is best, it insulates your board and helps with heal dents, etc.
Competitive Pros like to put wax on their traction for a little more bite and grip for big airs and push/shuv type maneuvers.
Many find it too much and harder to move their feet around which can be a big hinderance when learning.
Wax is cheap, but requires maintenance and will melt and get all over stuff if not contained.
A tail pad is pretty much always used even if front traction isn't.
Wax alternatives like Viskus float between EVA traction and wax. They won't melt like wax, but they are not nearly as long lasting or permanent like EVA. They tend to smear and wear off, and are good for about 2-3 months. Funny thing is most competitors that use wax alternative pads still apply wax to the pad. Bar of wax is $1-2, wax alternative pad is like $15.

Nick