Well, it's a fairly steep learning curve, whatever you start with. Serif, NOF or Nvu are probably the best bet for rookies. I have used NOF almost from day 1 and it's pretty easy for all but the most sophisticated websites. Serif is quite easy as well, but there are far fewer Serif users around in the Webdesign section click here. Nvu is open-source, so may be ideal to get you started.
FP is quite easy to use as well, but you should not be thinking of paying serious money for your kind of usage.