you don't need a virus scanner, you're virtually immune to viruses in Liinux. You also don't need spyware software, as you don't have ActiveX or any of that other stuff to worry about. You're free, my friend
as for software, the closest thing i've found to Dreamweaver, assuiming you primarily use it as a WYSIWYG editor, is Nvu -
http://www.nvu.com
if you're a hardcore codre, try Quanta
http://quanta.sourceforge.net/ website sucks, but you should be able to find what you need.
i assuming PowerArchiver is something of a "zip" tool? Your distribution should already come with one, probably Ark.
You'll find that most of what you need already comes with your distribution
now, what do you mean by the last softwar you need, get databack from NTFS?
