Hi, I'm not sure where to post this so I'll put it here; Maybe someone is interested using similar design when building a quad MBSID.. I won't go into specific construction details here since I'm planning to write a blog out of the whole project as soon as I have the time for it. Details/problems/etc of the whole project are logged but need to be given html-layout etc. Anyway.. Put short my idea was to use TK's design but combine it with recycling as much of the existing C64 hardware as possible. I'm sure the main design concept(s) will become apparent when you check out the pics ;). Go here: http://www.kewlers.scene.org/bitchard/quadsid/. Ta, .Arto.