OK -

So I have a new Voodoo Wanga in my bike stand that I have been building slowly. King Headset. Just bought a Paul Word Disc hub and am having a wheel built. Says that it has 51.5mm chainline.

Now I'm poking around for SS cranks and BB and I want to make sure I end up with a good chainline. What am I looking for? How do I make sure I buy cranks/bb that have a 51.5mm chainline? How many mm away from 51.5 can my chainring be to still have a good chainline? Can I adjust the chainline of my chainring after I buy the cranks and bb?

I'm going to go poke around Sheldon's (rest in peace & thanks for all the help) site. But if you have advice for me I would be grateful.

Thanks,
Ed