If you think you need 35K, then you'll need more, so a good business plan will be helpful.

I would start with the One Page Business Plan book, which will help you get focused. I have good business plan resources at http://www.TheResourceQueen.com

Then go to your local SBA office for help. And take some classes from your local SCORE.

There are a variety of ways to get $
F/F (family/friends)
Angels
VCs
Local grants available
SBA Help
Local Community or Economic Development Office.


That should get you started.