for amateurs nikon d90 because it has hd record and in bult image stabiliser. only amateurs like that shit though. though imo nikon has a bad lens collection.
canon 450d maybe, but nikon better fps i'm pretty sure
also pentax k20d, exceptional value. 15mp, fps5. something, weather resistant, cheap good weather resistant lens, interface subpar. they don't sell them anymore but some stores might still have some, they were very cheap rrp, they'll be even cheaper now.
and only buy at ted's, they know a bit more than any domian/harvey norman/jb hifi.