Warehouseexpress is good, I've got a few bits from them in the past.
As others have said work out what you want first as if you are only going to need a compact then a DSLR will become a pain to carry about just for the odd holiday snap. Equally some compact are superb but can be a bit fiddly for buttons if you have big hands or podgy fingers.
Nikon, Canon, Olympus are all very good and as Grahame says try 'em out and see what you find fits you and your hands best. Also have a look as the non camera companies as I've heard good things about panasonic cameras. Digital ones are just like a computer and the quality of the lens is key, Panasonic use very good lenses and know what they are doing with electoronics so no problem.
[url]http://www.dpreview.com/[/url] is also a good site and has good reviews. Also check out the gadget show (channel 5) site as they have done some good reviews too.
The white canon lenses are the pro standard lenses and top drawer but expensive, not for your average photographer and only if you are serious.
Oh and to keep the retro fans happy the best photos I've taken have been on my (used to be my Dad's) old manual focus SLR with a f1.4 50mm lens
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