Difference in brakes and switcher cables? I want to change all the cables in my bike. My knowledge in bikes is limited. As i found there are cables for the brakes and cables for the shifters. My question is: are those cables all the same? i.e. if I want to change the shifters and brakes cables, should I only buy two quantities of breaks cables?

Because I found these http://www.fahrrad.de/fahrradteile/felgenbremsen-zubehoer/clarks-universal-bremszug-komplett-kit-vorne/337558.html and I wonder if I should order two quantities or one of this and some other kind of cables for the shifter.

p.s. do I need to buy a cable for each brake handle? Does that mean I need to buy 2 just for the brakes and also 2 for the shifters? Viz, 4 boxes of that in the website?
Standard brake cables are 1.6mm thick and have either a cylindrical end perpendicular to the cable for MTB-style levers, or an inline stepped-cylinder (like a pear) for road-style levers.

Standard gear cables are 1.2mm thick and have a smaller cylindrical end, inline (cable enters circular face).

By standard, I mean both Shimano and Campagnolo use these gauges and end-styles and I'm not aware of any other variety used by gear or brake levers in current popular use...