Hi,
recently I found that Eurek Elettronica (http://www.eurekelettronica.it/) started making very interesting and relatively cheap Touchscreen LCD-s. did you also heard about them ? if so, do you plan to sell them ? if you are interested, they are seeking for international resellers right now. they wrote me by email, that one display price is 75EUR for 100 piece order and 50EUR for 500 piece order.
Best regards,
Irakli.