I noticed a few days ago that Logos is now offering the wonderful Latina Lingua Per Se books on pre-pub. I've been holding off buying print copies after hearing in a different thread that Logos would be bringing them out.
If you're not familiar with this method, and you're interested in learning Latin, you might do well to look into the philosophy behind it. An entertaining review can be found here: https://www.youtube.com/watch?v=32Z0DJfy8XQ , but there is a lot of material online about Hans H. Orberg and how he taught Latin. (An internet search will turn up a good number of discussion groups and forums focussing specifically LLPS (ex: http://www.textkit.com/greek-latin-forum/viewtopic.php?f=3&t=8427 )
I took part in an intensive Greek summer school this summer, and was struck by the number of Latin teachers who were very enthusiastic about these books.