Adobe make some truly great products, but Flash on OSX is not one of them.
Also, bear in mind that both Flash and Dreamweaver came from a buyout of Macromedia, so were not original Adobe products. In my opinion Adobe have done far less development on them than they should.
Don't get me wrong, I like Dreamweaver, but it could be better. For starters it could use webkit or Mozilla as its rendering engine so that it is genuinely WYSIWYG. I also hoped that DW would have got the same look and feel as the rest of the CS suite, but it is still got its old palettes and properties box. It would be great to have a color swatches palette with your sites colors in easy reach, but instead we are stuck with Dreamweaver's awful color picker.
AS for Flash professional, its OK but not great. Come on Adobe, give us web tools that also have the best bits out of the other programs in the CS suite.