Originally Posted by kalniel 
If you had said you were specifically doing a lot of indoor and low light shots without flash then I'd have pushed you towards a system with room to buy a cheap prime, like the 450D dual kit + 50mm f/1.8.
If you had said you wanted a small and light system to carry around I've have pushed you towards something like the Oly E620 dual kit.
Canon 450D + 18-55IS + 55-250IS
Canon 500D + 18-55IS + 70-300 sigma (non IS I presume?)
Olympus E620 (IS) + 14-42 + 40-150
Nikon D60 + 18-55VR + 55-200VR
Sony A350 (IS) + 18-55 + 55-200
Cheers for the detailed reply mate, I did forget to stipulate that I'll be carrying whatever I buy with me up mountains, so weight might be a consideration...
Also would like to take low-light outdoor shots and even night shots if possible...