Yeah both are expensive but dreamweaver in particular is very goo. There are some alternative however. Netobjects Fusion isn't too expensive and is very good. I'm sure lots of people have there personal favourites i've only ever really used notepad and dreamweaver
However depending on what you want there may be some script made that can be customised easilly to your needs. If its a shop type system dreamweaver / frontpage are of little use anyway and net objects has some nice paypal intergration features which is a good way of getting payments. You could also look into a system like oscommerce which is a free bit of software that can be installed for a shop front. click here
Sorry if all i've done is confused you or not helpful but good luck with your site!!