AE Bike is fairly easy to navigate. It's not really any different from any other site.... i've seen much worse! Go here for components and parts:
http://aebike.com/parts-accessories-...onents-c27.htm
Here is a brake cable that can be used on most any bike... just cut off the end you don't need!
http://aebike.com/product/jagwire-ba...a6210-qc30.htm
Shifter cables:
http://aebike.com/product/jagwire-ba...a4443-qc30.htm
Brake pads:
http://aebike.com/product/cane-creek...r1131-qc30.htm