Check out the
Sony Alpha thread. Pretty much all your answers are there.
You'll need a spare battery (NP-FM500H). I would get at least one. The A200 has a rechargable battery type usually good for about 750 shots.
A200K with kit lens for £229.00
here. £235.40 delivered with code:
Pixuk0911.
I would get a minimum of 2 CF memory cards (at least 4Gb each - better with 2x 8Gb).
7DayShop have good deals, or try Play.com. Go for something like a 266x speed. It's a dual format camera, so you can have a memory stick duo with adapter or CF card.
The camera is made of strong stuff. Just don't bang it or drop it excessively (after all it's a box of electronics and optics). And also consider if you're in moist/humid conditions, best not to be changing lenses too often as moisture could get into the body and likely end up on the viewfinder and more importantly, the sensor. It was bad enough in Florida!
I would wrap it all up in a polythene bag or something to help protect against moisture ingress. So a little extra protection will help (though my suggestion may not be the best solution).
A200 user .pdf manual download
here. Page 29 has the answers regarding image/format per card.
I don't think you can buy camera armor for the A200, though I'm sure someone will find something via EvilBay from a Chinese vendor!
The kit lens is OK. Nothing stellar, but acceptable. If you can get at least one more lens (maybe the
Tamron 55-200mm Di-II from CollegeCameras or a legacy Minolta lens (subject to your needs), you'll have some back-up and/or extra functionality in range.
My poor fingers . . .