I think that atleast a basic css-support is important.
I'm not so big fan of Javascript. I prefer PHP and as little of Javascript as possible, but I use CSS a lot. I think it is very usefull when creating sites with more than three pages and it also gives you more possibilities.
The lack of css-support is a big drawback for me when I do sites at home (two Amigas and no PC :-)). I do have LinuxPPC installed, but I'd rather use Amiga.
But then again this is just my opinion and everyone has their own. (ps. Voyager rocks ;-) )