I have to say I love Dreamweaver 5. It is a vast improvement over previous versions. Improvements include: a browser lab, "include" file discovery, code-hinting for functions and classes (even in your included files), CSS properties/starter page, FTP/SSH that actually works, line-by-line error checking, and probably many more nifty features I don't use.
One drawback is a still somewhat narrow support of technologies, but it supports PHP nicely. I also run into a glitch here or there but a restart usually fixes it.