What camera/s fit this description?

Reasonable price
Really good quality
Can also make videos
Focus changing
Can replay movies in slow motion maybe
Maybe canon or Nikon or just any brand

Thanks

Added (1). Maybe around $300
Forget slow motion, just videos

What is a reasonable price to you, and what would you consider to be really good quality?

To some, a reasonable price is $100, to others $500 and some have no qualms spending $1500.

What is "reasonable price"?
To a multi-billionaire $25, 000 is loose change
To a single mum on benefits $100 may be out of reach.

Decide how much you can afford then compare the cameras in that price range.

Any Canon, Sony, Pentax or Nikon (except top end pro DSLRs don't do video) will fulfill your requirements except the slo-mo video playback - that is what your PC is for.

Focus changing?

Judging from your budget, you can get a nice point-and-shoot camera from Sony.

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