I got the colours from the website. I knew exactly what I wanted since I was basically resurrecting my first fixie, a conversion. That old frame had gold lug outlines but I wanted silver for this one. White decals were easy to pick.
I have all the tools and knowledge for putting a fixie together save for headset tools but I negated that by buying a campy Record headset from Bob J (it's cheaper there too) and had them install it for me before shipping it over so all I had to do the day it got here was put it together. Since I had to wait, I slowly accumulated parts from ebay and the like and built the wheels for them (my second wheelbuild). It was actually going to sport a different wheelset but the Campy Omega Stradas were on eBay, NOS, for a steal.
I keep tweaking that bike though since I love it so. It's gone back to drops (the flat bars were for fun) and it now sports a Brooks Swift. I continue into retro-grouch/comfort land. I save the agressiveness for the Italian and Japanese steeds.