Hi there –
I am *not* an author. However, I am reader/reviewer periodically on Authonomy.com when I have time. Rather a cool application for my English degree, I’ve found :). Those who can do, those who can’t critique. :D
Anyway, authonomy promotes createspace.com. I have come across authors who have used lulu, but I really am not able to say whether createspace is better. Just what I am peripherally familiar with.
Have a look see, if you don’t know about authonomy.com, check that out too. Lots of interesting work there, both brilliant and awful. And there is a forum section where you could pick fellow writer’s brains about their experience before you jump in.
https://www.createspace.com/pub/l/books_value_authonomy.do?rewrite=true&ref=422296&utm_id=4632
https://authonomy.com
Good luck.