Thinking of getting a prosumer camera....

Going to Grand Canyon & Niagara Falls next mth ... dont want to bring my Nikon F80 ... want to buy a digi that I can tell on the spot if my pix is okie.

If money is not a concern, and these are my requirements, what are your advise? Many thanks in advance!! :

1) at least 5 mega pixels
2) with thread for filter
3) 28 to 200 mm
4) small and handy
6) with Bulb - at least 30 secs
7) with easy dials to switch from manual to auto

anyone knows when is the next digi cam exhibition ?? before May 04, I hope!

many cheers!!!!