Using FCKEditor to edit the look of personal web sites

I have a business network where every user has a personal page or profile - same as myspace.
I am thinking of letting the user change many css attributes to personalize the look of his/her page , but I am also thinking of simply editing the whole page content inside FCKEditor and avoid the unnecessary jagon of css and web design and make life easier for me and the users .

Which one do you recommend ?

Thanks