RyanVM's update pack, and BTS Driver packs are integrated into XP CD. I don't think it's possible to have users pic those as option, maybe but I haven't really run into any of those threads in here. You can use nlite to get rid of the crap if you like to. I have a 700mb CD, with RyanVM Update Pack + few addon packs + BTS Driver pack + 234MB of software which includes things as MS office and nero and adobe reader, avg blah blah (what an average user would need) I did nlite it, but it still has almost all of the functions, except I can't upgrade with the cd, which i haven't done in the 10 years i've been using a PC, and the language packs. + those xp games except soltaire lol, and the original drivers of xp since you're integrating BTS. Ya i know i haven't answerd your questions, but im just saying it can fit on one cd, unless you're going to put major programs like Photoshop and uncompressed office and all those goodies.