353658 Social network or portal

I am going to build a social networking website and I am looking for a programmer who will help me to choose the right script and help me to modify it for my needs. Here is what I need it to have: discussion board or forum discussion, blog, news, events, links , poll, group module, classified, tags, social bookmarking, chat, gallery. Please, PM with your suggestion of the script I could use and your previous experience with it.