Chuck,
I have a catalog from this place in Mich. called "Kitts Industrial Tools". They offer a "10pc slotting & cutter Mix" for $39 Catalog #ss2995 They also have plain slitting saws per each from $10 to 20. They are an advertiser in Home Shop Machinist
"Mixed 'NEW' saws & cutters 2-1/2 to 4"dias, thickness 1/32 to 5/32", 7/8 - 1" hole, $39"
I have bought this mix a couple times and so has a friend, and they turned out to be good blades.
These people have a website, - kittstools.com - but there isnt any thing on it like in the catalog, and you cant order on line, only phone or fax orders. I get a fair amount of stuff from them, and have had good luck.
Call and request a catalog, I think you'll find it a good source for some things