Bill's video's are excellent.
If you can get lessons from Bill, definitely go with that!
The place I referred you to teaches similar basics to what Bill teaches, and didn't change what my daughter learned from his videos. Once the movement pitches are taught there is a big divergence (peel vs rollover, 2 seam vs 4 seam, ect), however for beginning pitchers that is a non issue.
-W
Yeah I mentioned Bill by name because I was gravitating to his stuff. Maybe I will check out his building the house video.