I spend most of my time on road / cyclocross bikes but I have gotten into mountain biking a bit this past year. My Klein and Wicked are classics but neither of them have disc tabs. My new cyclocross bike, however, does. I will be using Campy Ergo road levers and mechanical disc brakes.
I'm looking for some advice as I have absolutely zero experience with mechanical discs. I'm considering picking up some Avid BB5 or BB7's. Somebody has offered me some Tektro Aquila rotors/calipers as well but those appear to be more entry level.
Any advice? Are the cheaper brakes any good? If they are just heavier than the higher end rotors but still stop as well (or almost as well) that's not a problem since I won't be racing.