Hi! I'm new to the forum.

I've owned a bike like this one for about three years (56 cm frame): http://www.yoyo.com/p/schwinn-inters...bicycle-129019

This past summer I bought Freedom Elite Urban Thickslick tires, Newbaum's Cotton Handlebar tape, and a new saddle. I prefer the feel of a fixed gear bike over single speed. Therefore, I want to make this a fixed gear bike. I want to change certain parts like the crankset (new color, possibly gold), seat post, handlebars (either riser or drop), fork, stem, and brakes. Also, I want to purchase an Aerospoke 700c rear wheel and a Velocity Deep V front wheel. However, I don't know how to figure out the measurements for these parts. If anyone knows the measurements or knows how to figure out the measurements, please help me. I've searched and searched and no luck, even on Bikepedia. One of the main places I know to get parts from is here: http://www.statebicycle.com/category_s/17.htm
I'm sure there are more that I don't know of.
Any tips/suggestions are appreciated!