I was fooling with my D40 today and an SB-600. I was able to get it to multi burst together in Manual mode on the flash. Is there a way in other modes on the flash or change the settings on the D40 to allow it to get more light. Right now I can only multi burst using manual on the flash set at 1/8. Anything higher than that and it won't flash on the second shutter release. Final question, would the SB-800 be able to accomplish this better than the 600? I am only really looking to fire off about three shots at a time but would prefer to get as much light as I can to bounce and fill a room. I read the manual but can't seem to find any valuable info.... Thanks Sal.