I think I'd prefer liquid/cream so please suggest them types. Currently looking at Revlon's, Loreal's, Bourjois Paris, Max Factor...

Feel free to suggest other brands.

Also, I live in England, so please put forward brands which are available here. For example, I've looked everywhere, but Cover Girl isn't available here.

=]
Edit: Also, I'm not looking for concealer to cover spots and blemishes, I'm looking for one for dark circles under the eyes. Thanks. =D