Brake Pads and more..

[mercsades]

Its about that time to change the brake pads only (no rotors this time) on my 87 560SEC, but I don't know which brand to go with. Should I go with Textar, Pagid, PBR, Jurid, ETC.
What brand do you W126 owners like using and why? Also I noticed for the rears they sell Rear Pads with ASR and just regular Rear Pads. What is the difference and how do I know which one to use for my 87 560SEC.
Do you guys like to buy your pads and part @ Fastlane?

This might be off topic but is okay to flush your radiator with just regular super flush they sell at your local auto shop. You know the ones made by prestone. Or is that a big NO NO. I know you have to use MB coolant but how about just to flush it.