Epoxy Resin?

Hi guys. I've been making a lot of table tops lately using a dished 3d model and then filling the relief with 2 part epoxy resin so the top is smooth and flush. Man that epoxy stuff is expensive. Does anyone have a source that may be more economical than the $80 a gallon that I'm paying now or even a new product to achieve the same effect? I have done the Google thing, but thought I'd ask here also. Any push in the right direction would be fantastic. Thanks.

uscompsites thin epoxy come is several versions under $80.
http://www.uscomposites.com/epoxy.html

but sounds like you would be better off with the table top epoxy.
http://www.uscomposites.com/kk121.html

Thanks Dave. Much better!!!!

Jim McGrew shared his source for epoxy resin at his Aspire Gathering last week.
Take a look at www.granitecitytool.com
Eleven bucks a quart. I haven't had time to look at the web site myself yet but the spec sheets look promising.
.

Uh.... Keith, which epoxy? There must be half a dozen kinds in the first page of my search results...

I have used epoxy from this company, and the prices are pretty good.

http://www.aeromarineproducts.com/bar-top-epoxy.htm