Permissions on uploaded files (Unix)

Hi All, I'm running Apache with PHP 3 as compiled-in module. My problem seems simple, though, I haven't found anything in the FAQs and other docs. When uploading a file with PHP, it gets owned by the user under which Apache is running as and the perms are 755. That means that the webmaster, which is ftping to the server, cannot change the file (rename, chmod, overwrite) but only delete it since he owns the directory to which the file is being uploaded. Before I'm going to write scripts to change ownership, is there an easy solution to this problem? If it's just a RTFM, I'd be happy to do so ;) Thanks! -- Kilian