Science fiction author Neal Asher is giving self-publishing a go. He has just released a reworked reprint of his novella "The Parasite" on the Kindle. This was one of his first works to get published.
Available here:
£3.56 from
Amazon.co.uk or for $4.99 from
Amazon.com
As far as I can see there are no geographic restrictions, although the price varies for the different regions.
Depending on how successful it is he might release more of his work to which he retains the ebook rights. If you like his stuff, be sure to support this effort.
It's also interesting to see some of the big, established authors trying their hand at self-publishing.