FranchiseJuan said:I completely dissagre. Built in flashes on cameras such as a 400D or 30D can be really usefull for situations where you need to use some fill during the day. Most DSLRs with built in flash let you control the power of them, and they can be an acceptable alternative to carrying a 430 EX or something that size.
Maybe I've never used it properly but from what I've seen its just nasty.