
well i am doing the same very soon and i am changing the hole style of my site this will include some link changes and also adding a mod-rewrite
then all my pages will be fully SEO frendly and lots better content on each page so over all the website will be alot better
BUT i know now i will drop like a stone were i am high ranked but im not worred cos if i have been there before and im only making the site better i should go back but only time will tell
Also remember a website can not stay the same all its life else it would become a bit out of date then your users wouldnt come back so what would be the point of a high ranked website that isnt used
GO FOR IT