Another source for downloads not yet mentioned is eMusic.com, although that does require a subscription. However, there are several different levels of plans available. They carry a huge amount of Celtic music, both the bigger names and lots of lesser known (but very good artists as well.) Most people have month to month plans, so you could join for awhile, get what you want and then quit, if that suits you. Most items are available by single track, although they've recently started having some good deals on whole albums. Per track prices are usually the lowest around - music lower than iTunes and even Amazon. (in the range of 40-50 cents a track, depending on the plan. This month I got some of the album deals, and ended up with a per track rate of about 35 cents.) I've been using the service for over three years and have been very happy with it. I'm including a link here to an eMusic thread I started a year and a half ago that is still going strong (on and off) involving a discussion of the Celtic music available on eMusic.

Celtic Music on eMusic


Another possibility for you is to buy used CDs via Amazon or other places, as those would be a lot cheaper than new. Another source is Compass records, which has sales a few times a year on their Celtic music, with CDs running about $12 during their sale. (They have taken over the old Green Linnet label, among other things.) I just took a quick look, and it seems their digital albums go for about $10.)