I've done some digging around and I think I know which chips are needed, but there is a logic chip that sits between the VIC-II and the processor. I think this is for controlling use of the ram (VIC-II has the wheel in this respect- it can stop the processor accessing the ram if it needs access itself), but i'm not sure what I could remove and what I can keep. If I can find out the minimal configuration for using a VIC-II, the programming I believe will not be too difficult, and I think that in bitmap mode, a matrix of the screen is stored in RAM (320x200) so we'd be able to get a relatively high resolution display out of it (only 2 colours can be assigned per 8x8 pixel block though). stryd_one suggested use as a display for the SEQ, which I think is a brilliant idea, as a seperate display module could be made and linked to the core, and a cheap colour screen (like the ones for the psone which are about £20) It'd be cool if some of you could maybe have a look at this issue yourself, as I'm not sure that I'm experienced enough on the hardware front to pull this off (i'll definitely give it my best shot though ;)) I think that this could be a valuable addition to the MIDIBox lineup, and It'll save waste too- how many of us already have a load of SIDless C64s sitting around? ;) Okay... enough rambling :D