Most of our extensions have been tested to work correctly on snow leopard.
There were not major issues that were found after upgrading to snow leopard.
I have ran DataAssist and iRite on Snow Leopard with no issues.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.