I bought some Goodridge steel lines for the SVS and am planning to put them on the bike this w/e, along with new EBC pads

I've never done anything like this before, so having read through all the "How To"s I can find on bleeding brakes, I'm wondering if anyone can give me any additional "personal experience" pointers to make the process of getting the brake fluid into the new lines as painless as possible?

And now for some really dumb questions :

1) what size tubing will I need? I'm guessing since the bleed nipple needs
an 8mm wrench to loosen it, a similar size?
2) How much brake fluid should I get? I need to replace the old stuff, as
it's really manky, and have some extra for (ahem) newbie "incidents"
3) Any pointers on installing the new pads? Something else I've never done before...

Thanks