I have the following for trade:

Herbs:
Giant Italian Parsley
Italian Basil mixed with Lettuce Leafed Basil.

Hot Peppers:
NuMex Big Jim
Goats Horn aka Cayanne
Sorraino

Sweet Peppers:
Lipstick

Tomatoes:
Not sure of the viability since they have been in cold storage for a while,
but the following are available for trade.
Fox Cherry
Matt's Wild Cherry
Besser
Purple Calabash
Beavite Blanche du Canada (White)
Texas Wild
Nyagous
George Curtiss Spoon Tom
Ladowick XVIII Dwarf Red
Coyote
JD's Special C-Tex
Mairabell (Spelling?)
Hawaiian Currant

I have seed not listed here, so If you don't see anything your interested in, ask me about a variety your looking for and I'll see if I have it, and if I have any seed to spare for a trade:)

Thanks, Ron:)

My exchange page is:
http://www.gardenweb.com/members/exch/farmer_rons_patch