I don't have any recomendations for CD's.
What I have done over the years is look for music books with "fiddle tunes" in the title. Lately I been looking on the web for Fiddle Tunes There is a ton of them mostly in the UK English. Irish, and Scots. For here in the States look for blue grass fiddle tunes. All of these can be challanging because of the speed they need to be played, the bowing and the size of bass. Also, the doubble stops will dirve you nuts untill you get them right on.
If you want a nice tune to start with search for "Keswick Bonnie Lasses" I found a version on a Viola web site and several other versions here and there. I will post my rendering of it if I can figure out how to. It was collected back in the 1800's in Keswick.
Here is the URL for Keswick:
http://www.folkviola.com/Writing/Bowing/Keswick.htm
If you go up the url tree there is an interesting article on bowing and how to phrase music diffrently. Yes, I know it a Viola page but the idea is the same, (I'm married to a Viola player what can I say.)
Joe