Having demoed the 5700 . (I was plagued by the Rainbow effect really badly) I have a predicament and would appreciate any help. Do I go for The Z3 (lcd) no rainbows? .good price and free bulb or .............wait for a demo (when?) of a H79 hoping it doesn`t yeild the RE.. I would recommend demoing a projector before buying if possible. Thanks to the very nice people at Creative Audio I was able to sample the 5700 and find I was susceptable to RE .