I am about to move to a new host and as such would like to reorganize (clean out clutter) my web servers folder structure. Basically, I would like to move all of my website php pages to the root directory but I'm concerned that this movement might adversely affect my page rank / search engine placement since the currently indexed pages of the site point to this subdirectory where I'm currently locating all my php files.

If I move the files, will this probably affect my rankings....my thinking would be that the search engines would basically be seeing what it thought was "new" pages, since the pages were located in a diff. folder than the currently indexed versions?

Any thoughts on the best way to do this without killing myself in the search results..?

Thank you for your help.