The style that fits is the style that fits Shimano Deore disc brakes.
I order mine from Alfred E Bike http://aebike.com/
with the EBC disc brake pads at
http://aebike.com/page.cfm?PageID=30...and=119&type=T
Choose Deore M515 Mechanical, then choose Gold (they have gold and green)

On the back of the card it categorizes all three pads (green, red, gold). The Gold (sintered metallic) are the longest wearing. The card says to not use them for downhill mountain bike racing because of possible overheating although I imagine that means on a hydraulic system because you don't want to overheat the fluid. The EBC red (which AE bike doesn't carry are for downhill racing - soft pads - great grip - and because they wear rapidly they won't generate as much heat as the barely-wearing gold pads. The green pads are for general use.

I noticed that the beyond bikes site you gave listed the pad that looks right to me as a replacement for a shimano hydraulic and that confuses me because the aebike site always refers to them as deore mechanical. My disc brake knowledge is limited to my personal experience with the Winzip and looking at other people's Avid disc brakes.

I'll add that when installing the pads I used the help of my stoker to apply the brakes while I sprayed some water on the rotor and pads to help seat them. It eliminated the moaning / groaning noise that I had when I put them on for the first time. I'm going to put new pads on this week and I'll see if that method works again.

Bloomington, IN