I used Canon 550 with 10-22mm, 70-300mm, 50mm 1.4 etc but to buy others lenses are expensive cost the (IS / VR) is builted in the lens not the body itself. Beside those mentioned, I would also like to point out that the SONY and only one has the "Mirror Reflex Lens" with Auto foucus and yet light in weight ard $1200 from Cathay for birding.
The A550 is a much better choice for me as that's the reason I sold all the Canon stuff and switched to A550 with a walking lens 18-70, 70-300mm and a 500 mm Mirror lens for birding and long range shooting.
Get another Canon S90 for travelling as it light and it similiar to LX3.
with these , my choice is no regrets.