cabinet work

I spent a lot of time working on the front cabinets this weekend. More time consuming than I expected. I'm happy with the progress but I don't have any stops or latches installed yet. I hear that magnets are used but where are they placed? What is best and where is the best location for a stop? I guess I should have thought this all out before I started building but how many of us actually do that?
http://img.photobucket.com/albums/v422/ ... tear12.jpg
http://img.photobucket.com/albums/v422/ ... tear12.jpg