I am using a cheap GLCD that I got off EBay, driven by the GLIC-K1 Graphics Interpretor, designed to interface with PICAXE. When going for this option, make sure the GLCD has a KS0108 driver or equivilant. The alternative is a Toshiba model, in which case, all you need is the GLIC-T1 instead. As for a touch screen, I have done all the research I need to know how to interface it with PICAXE, but not found a suitable one for the size of my GLCD.
Now that I have come accross this site that womai has pointed out, I may just buy the GLCD+TS, however, can womai or anyone else tell me the graphics driver used in this GLCD because I cannot seem to find the information.
Using the GLIC IC is straight foward, but if you are interested in this route, please PM me BEFORE purchase.