Fudge,
Most likely you will be looking around $100 up to $225 for a 3 kg pail locally. Depending on whether it is colour change or not.But i did find you this:
http://www.silicagel.net/pricing.asp
The website states it is in Toronto as well but i am not sure if the pricing is US or Canadian?
We currently stock 2 companies: Grace Division Silica Beads and Brenntag Silica gel.We have carried those 2 for years now because of great comments from the end users.
Any more questions let me know.
Steve