I made a bulk purchase of EDT 4x20 LCDs. These are very sharp with a yellow-green LED backlight and are HD44780 (Swordfish standard LCD module) compatible. They have a cable of about 18" with a 16x1 female connector on the end. These displays DO NOT include a current limiting resistor on board - the data sheet recommends 3 - 6.8 ohms for a 5 volt supply (yes, the LEDs will handle a lot of current!)
If anybody would like some of these displays, they are 3 for $30, including USPS Priority mail shipping in the US. Send me a PM.
The displays look like they were pulled from equipment or were new and never installed. They are part number EW20400GLY, which translates to "SmartFluid STN Gray Background, Transflective with Yellow-green LED Backlight." The "SmartFluid" technology claims to dramatically increase viewing angle, which it does.
I'll test each LCD before shipping. 4x20 displays are available for a similar price on ebay but these have a much nice display than any I have purchased on ebay. Note, these displays are not from Sure Electronics - the text displayed is generated by my LCD tester board which is from Sure.