Like previous posts noted, the Circle of fourths is essentially the same as the circle of 5ths. The only difference is how you move about on the circle. For example, if you were to take a Major scale and play it in the key of C and then move that scale to the key of G to D to A to E ...etc you would be moving the key up a 5th every time you changed keys (ergo the name Circle of 5ths). If you were to change keys in the opposite direction, you would be moving up a 4th every time you change keys: C to F to Bb to Eb, etc... (Circle of 4ths). It's really a matter of semantics. You could also look at changing keys from C to F to Bb to Eb, etc... as moving DOWN a 5th or moving from C to G to D to A, etc as moving down a 4th.

As for using the circle to create nice chord progressions, for an interesting application of this concept, check out the song "Chestnuts Roasting on an Open Fire." If I remember correctly, this song in its full form actually changes through all 12 keys at different points in the song. (I may be thinking of the wrong song, so if someone else knows what I'm talking about, please correct me)