Put your novel up on Kindle. Cost: Free--Dean Wesley Smith
Put your novel up on Smashwords, which gets you to Sony, Nook, iBook, and other places. Cost: Free
Put your novel through CreateSpace in trade paperback form in POD. That gets it to Amazon. Cost: Free (or $39.00 if you want better distribution into all stores.)
Put your novel through LighteningSource in trade paperback form in POD. That gets it to Ingram. Cost: around $100.00
No reason for a self-published author these days to pretend to be a traditional publisher and go into the produce model. And besides, why do it until you’ve tried to sell it to a traditional fiction publisher first?
Here is a link to his website, it's chock full of great information and advice for someone trying to break in to the writing business:
I highly recommend it!
All this reading I've been doing has convinced me all the more that I just need to spend more time writing and worry about the other stuff after I finish the manuscripts. I'm back at it....