Ayeka: Camel are a great Prog Rock band from the 70's who, to a certain extent influenced Opeth (i've heard their new one 'Damnation' is meant to be quite Camel-y).
'Mirage' is an excellent album and is definately worth buying, it contains some excellent organ work and song writing prowess. An incredibly enjoyable album.
'Music inspired by the Snow Goose' is another great album, however, unlike 'Mirage' there are no lyrics what-so-ever! It's an instrumental prog concept album based on the story of the Snow Goose (i'd tell you the whole concept but it's a bit....odd...it involves a girl, a Snow Goose, a hunchback, Dunkirk and Nazis) - But as they're no lyrics I think you may have to purchase the book 'Snow Goose'.... it's a very good album, with excellent songs, but's a bit harder to stomach than 'Mirage'...
I'll give you a better description of both albums when I'm not so knackered!