The CH Pro USB pedals can be used with the Saitek x36 combo USB both here in Aces High where it's all set up to use any type of stick, as well as in older games.
With older games you just download a file that allows the pedals to work in place of the rudder rocker switch. I don't use that file, because newer games like Aces High and WWII online allow the user to set his own control axis.
I'm not sure what this other set of pedals is all about, but I can't imagine a better set of pedals than the CH Pro USB Pedals.
While your at it you should skip the Saitek x36 combo, which I have and have written the profile for offered on the downloads page, and get yourself a set of the new CH Throttle USB and their new CH USB stick. I am switching from Saitek, very poor software, to CH as soon as they ship them.
Good Luck
Ranger Bob