Hi aviper9,
The list in post #2 here is up to date (it was last edited on Sept 30, 2012) :).
Depending on the size you are looking at, the type of latex, and whether you are thinking mattress only or a mattress/foundation set, your budget may be on the low side for an 8" - 9" latex mattress with a softer comfort layer over a 6" core but it would probably be enough for either a thinner all latex mattress or a latex/innerspring or latex/polyfoam hybrid. Some preliminary calls to let them know your “criteria” and a few questions which can give you a good sense of what they have available in various budget ranges would be a good preliminary step before you start to visit various retailers and test mattresses.
Phoenix