I agree about DiveTech being a great place. I've received fair pricing, expert advice and excellent service. Their address and phone are:

Dive Tech Training Centre 1624 Hwy. 2 East Mallorytown, Ontario Canada K0E 1R0 - - - (613) 923-1992

website is: http://www.divetech.ca/index2.html

By the way, I don't have any connection or affiliation with the place. I simply like to see a great operation do well.

Stu