There seem to be relatively few Secure EPUBs, but browsing
Hachette Group or
Random House or
Penguin shows a few of them. Also, the
Big Bargins contain quite a few EPUBS with 100% rebate.
These are standard Adobe ePubs, which ineptepub.pyw can make DRM-free.
I tried three search sites for
The Girl Who Played with Fire by Stieg Larsson and all three (Inkmesh, addall, and ebookprice.info) failed to find ePub at FictionWise. So I think these must be very new, and perhaps not reported in their external catalogue yet.