What do you think of [CF]Eclipse?
The best, at the moment at least. Just do it.
Or you could try CFBuilder.
Both CFEclipse and ColdFusion Builder are excellent options for CF development.
I left Dreamweaver for CFEclipse in 2006 and have never looked back (that said, there is absolutely nothing wrong with Dreamweaver and I don't mean the above as a slam or criticism on it or anyone still using it). It took a little while to get into the Eclipse mindset (it's different from DW), maybe a week or two of regular use, but once I got used to the way Eclipse works, it seems natural.
Between CFEclipse and CF Builder, which is only in public beta (http://labs.adobe.com/technologies/coldfusionbuilder/), I prefer CF Builder. It's got excellent code-hintings/intellisense features and is quite robust, even for a beta application.
However, CF Builder (most likely) won't be free, while CFEclipse is an open-source project and is free. If you're willing to (possibly) pay for an IDE, then definitely try CF Builder. If you know for sure you don't want to buy another software application, try CFEclipse. Of course, there's no harm in trying both !