Get a well name brand of camera, as the lens makes a big difference. Vivitar camera in my opinion, not so good, sorry Ian.
Nikon, Canon & Pentax...the big 3. Pixels...price dropped dramatically over the years and 4or5 mega pixels are enough. Unless you want to buy larger storage media, as the pixels go up the memory needed increases. Believe it or not 2mega pixels is great for A4 pics, it's only if you want to zoom into your pic and blow smaller areas up that you start to need more sharpness etc, which is what more pixels do.
The better camera lenses stop down with figures like 1.4 & 1.2 as examples, which mean they can produce quality pics in low light.
I believe Fuji though are meant to be quite good in this respect, hence maybe KKOB's choice.
Use a tripod when you can and shoot at dusk and dawn, like I do (not) LOL