Good, Inexpensive Sources for CD's


I would appreciate any tips on CD sources on the Web that have good, broad coverage of discs combined with decent prices.

Any good experiences to share?

Thanks,
jbrrp1
www.deepdiscountcd.com is probably the cheepest and has free shipping. www.cduniverse.com has more inventory but costs a little more. www.artist-shop.com has a wide variety and lots of progressive and fusion.
If you OK with used, I've found Amazon's used marketplace is a good source for CD's. Everything I've looked for has been available, including obscure titles. I find that DeepDiscountcd has good prices, but a limited selection.