In Steve's newsletter today he compared prices for blade clamp replacements, and shipping, from a few sources. Many of you know, but some may not, that the set screw and the removable tip in the clamps can be purchased from Seyco for $6.30 for a set of 2 of each. You usually don't need to replace the whole clamp, just these two parts that actually contact the blade.
The ones for the Seyco and Excalibur saws work just fine with the DeWalt, so probably would also with the Delta. Not sure about any of the others, as I don't know if they have the thumb screw with a removable tip. Hope this might help someone.