What a bummer!
There are loads of tapes/dvds you can buy for baseball and basketball, but virtually nothing for football. Why?
Pretty much the only tape I've seen for sale is the NCAA Football Officiating Video/DVD. You can order it directly from the NCAA here:
http://ncaa.sportgraphics.biz/index....D05¶m_1=16
Officiating.com also sells a DVD with Dick Honig talking about working the Referee position. Frankly, I don't think it was very good, but at least I got it for free.
I wish I had the energy and equipment to make my own tapes.
Edit: Actually, the NCAA "tape" is a CD-ROM, not a DVD.