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Any camera that has a Macro setting, and I'd say at least 4 megapixels. With those two things, you'll be able to take some good pics of everything you listed, and the camera will run you under $200.
I've been more than happy with my Cannon Powershot S1IS...I think they're up to a 7mp S3IS now though
If you're not getting closeups of faces or flowers Macro is over-rated...you'll be better off with a good OPTICAL zoom, somthing like 8x or 10x minimum.
I'm looking for one as well, although I am leaning towards a digital camcorder that also has picture capabilities. They are available with pretty good resolution. I'll let you know the specs and cost when I decide on which one. Another option to think about.