Help with a JOIN statement

I have 2 tables, 'users' and 'files' (defined below) Can I construct a single SELECT statement so that it will return ONLY users that have files and ONLY the last file that the user has? So it would return 1 row per user containing their most recent file. users -------- Id int Name varchar Files -------- Id int Userid int Filename varchar Stamp int (unix_timestamp) The way I'm doing it now, I use SELECT DISTINCT to get all the users with files, then a separate query for each user returned to retrieve their latest file. This method requires many, many individual queries to the database? Any help is appreciated. Thanks, Mikey