www.cleanrun.com is loaded with super sweet equipment.
My favourite agility trainers are;
Susan Garrett, all around training www.clickerdogs.com
Greg Darrett, shadow handling http://www.gtagility.com/
Susan Salo, for jumping grids, http://www.jumpdogs.com/
and of course
Sylvia Trkman (my all time hero! she's so relaxed and chill, I love her!)
We made our jumps w/pvc from Home Depot for approx $10 per jump....and it took Darrell about 5 mins per jump to cut and glue.
If anyone wants to know how, I can email the details! We have left over temp fencing we use for a "tunnel" for now. Use your imagination...it's fun!