simple,just take a external flash gun,I find that many people today are spoilt by technology... Anyway,decision between E-P1 and E-P2 to me is very simple,main question is,do you shoot a lot of videos,not just family videos,I meant like those short movies,if yes,E-P2,if no,E-P1
If you use diorama and cross process filter very often than E-P2,if not,E-P1, I can live with the E-P1's video capabilities as I shoot more photos,and the diorama I hardly use,probably cross process will be something I want but since I hardly do cross process,doesn't bite me that much