And read, read, read...
www.dpreview.com is an excellent place for reviews and comparing camera's.
With that nice amount of cash available I'd certainly be looking at bridgecamera's like the Panasonic FZ7 - the canon Powershot S2 - the Sony H1 and others...
But, as I've experienced first-hand, if you really want quality... in every way, I think you'll need to go for a dSLR. Your budget however may be a bit on the small side, especially if you want to go out planespotting. Again, I could be wrong, the dSLR owner around here could tell you if I'm correct...
I received my camera for my birthday, so my father and girlfriend did the research... it came from pixmania... you might check it out... it's also available in Denmark.
http://www.pixmania.com/#Cheers,
Omag
PS: you can see some of my results in a bigger format on airliners.be
or straith to my album...
Omag's album