Dreamweaver CS5 and CS6 can be installed on the same computer at the same time. no need to wait for the new dreamweaver version.
i currently have CS3, CS4, CS5, and CS5.5 all installed on my Mac, on my Windows XP machine I have 8 - CS4.
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.