the best would be 3 cameras:
Canon EOS 10D
(or 20D) (very heavy - stable pictures and no easy to damage)
SIGMA 105mm macro fixed - wonderful portraits due to limited focus
SIGMA 28 to 75mm for standard photos and wide angle landscapes
SIGAM 50 to 300mm for the rest
SIGAM 15 to 35mm wideangle if possible
with this you can cover 99% of all situations.
Canon EOS 300
or any analogue camera with a ISO 50 or ISO 100 dia film - makes the most beautiful colors on sunset or evening.
So I can use all lensed on both cameras - digi and analogue.
I make the photos for internet/screen and my VR photography with the digital SLR (less distortion) and only the most beautiful landscapes which will be develped to poster size with my analogue one (use the same settings as in the digital SLR).
And finally I have bought a Canon Powershot G6
(uses also CF cards). This is in my opinion the best compromise between flexibility and quality losses. It has a fair lens and the possibility to adjust aperture and time individually. Another big advantage is the fact that I can use my Canon EOS 550 flash on it as well (in combination with a flash extension cord the perfect thing).
Remember ... you will need more than 19mio px to get the same quality as a dia film and this is far away from the ideal color! So if you are planing to print your photos you will need analogue or a good resolution (do not panic, large printouts have the advantage that the people do not need to come to close to it).
So you need to decide, what is important for you and what kind of pictures you are planing to do - professional, for the web, etc.?
And do not forget - the best friend of a photographer is Adobe and its son Photoshop.
For all german speaking guys ... check this site out to learn photography:
Hope that I could help you a little bit with this info,
one live - live it well!