Hi everyone , I thinking to build a database driven website( if it is appropriate term to use). Here where i live there is one website that impressed me a lot interms of functionalities and i want to build similar website back home in my country. The site is called WWW.Finn.no. It lets users create profile and /or post vacancies, products to sell , rent whatever. Of course i want different looks and structure but pretty the same functionalities. I am not novice for static webdesign( i do it for fun but not this time though ) but given the possible number of pages and database envolved scared me a bit. I am planning to begin first the plain website with html and css and then proceed to the database stuff. Please if you have any idea on how to proceed or possible problems i might face as i go along it is hugely appriciated.

Thank u in advance