Problem with a query

[Mike Lewis]

Hi
I'm very new to MySQL, so any help would be great.

I'm making a site which involves users being able to rate albums. The data on the albums is stored in table 'albums' with a keyfield 'albumID'. The votes are stored in table 'albumratings' with fields 'userID', 'albumID' and 'rating'. I want to run a query that produces a list of all album's details, along with the user's rating if there is one. The 'if there is one' bit is the problem.

I've tried:
SELECT * FROM albums,albumratings WHERE albums.albumID = albumratings.albumID AND albumratings.userID='$userID'

But that only displays the albums that have been rated by the user. I'd like to display all the albums, and the user's rating if he's rated it.

Thanks in advance,

Mike Lewis