I'm contemplating upgrading to prop pack or poser 5, which is best. I'm an animator and am mainly aiming to output to flash and build characters who have to be robust. I use a G4 imac and run Mac OSX which is more useful and which is more stable? are the bugs in poser 5 ironed out yet? can you use movies as materials are there any let downs are there any must havescan't do withouts? would appreciate advice thanks in advance the iMan