Hi agallant.
If you are looking for a WYSISWG that's as powerful as DW in linux, I can't help you out. My best suggestion in you _need_ the WYSISWG interface is Mozilla composer. But if you're familiar with the code and usually find yourself "getting your hands dirty", then take a look at
Bluefish.
I've also had pretty good experiences with Quanta... but keep coming back to Bluefish.
As for Access, the big one is probably
MySQL, but also take a look at the suggestions on
this page.