Thanks for all the nice comments, everybody! I'm glad you like the veil!
kstarsk: I used plain old tulle, 108" wide. It's pretty inexpensive - about $4/yard, I think. Also, I used a pattern (it was vogue, I think) but that is actually not necessary. The website that a previous poster mentioned (http://www.wegotgame.net/jen/veils.html
) is pretty helpful and gives all the same directions as the pattern.
Other tips I have for anyone interested:
1. It's much easier to glue the beads than to sew them, especially if you want straight lines.
2. I used drafting tape to make straight lines and even spaces.
3. If you want a border of beads, glue your design in from the edge a couple of inches and THEN cut the material right up next to it. It's impossible to glue a tiny bead on the edge of tulle!
Here's a couple more pictures of the border on the veil I made:
Thanks for looking (again!)