Just came accross Ridan Publishing
http://www.ridanpublishing.com
(Basically I was looking for Haldeman's The Forever War in epub for the UK)
Limited selection (Just a few authors) but I got a well formated DRM / GR Free epub (they also do mobi, palm, lrf etc) for $3.99
Old school low tech processing - pay by PayPal and they will email you the book in a day or two - so, if your into instant gratification, you've had it.
Selection seems to be mostly multi award winning Speculative Science Fiction (With a leaning toward military) - Books by the following authors are available.
Bryce Anderson
Joe Haldeman
Nathan Lowell
Leslie Ann Moore
Michael J. Sullivan
Marshall S. Thomas