if it's DSLR, i suggest to stick to Canon or Nikon (the big too). Olimpus makes good compact cameras but in teh world of DSLR they are nowhere to two contenders, mostly becuase of their range of lenses. it's true that they have a 3/4 sensor which makes the cameras smaller than the competitors which can be an added value underwater but then again, any decent lens costs a fortune with olimpus.
my suggestion is to stick to DSLR not going sea n sea or similar, i took that road once with my last camera of film and it was nearly close to what a nikonos was able to do.
At the rock bottom you could get a 400d (450d is out now so 400 should be getting really cheapo), a Fantasea Line housing and dome port you look at 1800, max 2000. i didnt add the fish eye lense to keep it below 2k!
this one you could find second hand probably and it's going to be close to 2000, max 2500.
yes, bhphotovideo.com is a great place to shop around
serge
