So I figured this would be a good place to start. I want to start biking. I'm 5'7 and some about a 31" inseam. I can get a good deal on a 2006 Roubaix SL frame with a sadle, seat spot, fork and a double crank set. Is there anyway someone could advise me of somewhat cheaper components to finish it fairly cheap. Im in college and dont roll on gold rims Im new to the whole thing!!!
BUT Im good with mechanics though new to bicycles..
The idea behind this is I figured I could get a much better bike used than if I bought a new one for the same price (similar to cars right )

So I need a handlebar:
rims
Cassette
front, back derailleur
Shifter,
breaks | seems these two are combined often
chain

What confuses me is the difference between certain things!

Looking at the Sora line (heard its best bang for bucks in the lower end)

For example
http://bike.shimano.com/publish/cont...e-rd_road.html
http://bike.shimano.com/publish/cont...e-rd_road.html

Maximum Sprocket |
Minimum Sprocket | What is that?

These two have a different front maximum difference and capacity, what are these?

What is the difference between a brazed-on and a band mounting of the front derailleur??

I know that is a lot of question and information. But I like to build my knowledge... any help will be greatly appreciated

oh and pedal but will talk about this later..