i dont think u can only do 2 subjects, unless u redo previous igcse subjects.
yea sciences are always harder than the rest, but it depends on how good u are ofcourse
i do IB and i do ICT and Business+Management, and its not that hard, im sure AS ICT and Business+Management wont be that hard too =]
it all depends on the amount of time u study, as boring as it looks u have to study even when u dont have homework, unlike the previous years where we just all slacked around
anyways gl =D