this company?

KitchenKrafts?
http://www.kitchenkrafts.com/default.asp

some things seem pricey and others (such as the 2'x3' silicon mat) are very reasonable.

any suggestions as to better source(s) of supply?

I have ordered from them...I found the prices competitive for what I ordered and I received the order very quickly. I would buy from them again....

I have had great luck with them. However like you said, some of their items are great price and others are over priced-so just make sure you shop around.

But I usually receive my items faster than the shipping says I will.

Recently had a problem with some filling breaking open in shipment and they sent a replacement that day! No problems.

Leily