My co-founder and I are both married with small children. We were both full time developers before founding our company. We started working on a side project at night for a few months and then heard about a local Utah version of YCombinator called http://www.BoomStartup.com (We're IActionable.com). We were accepted, but there were many late night discussions with my wife as we tried to figure out a plan to survive on the little investment money we would get. (compared to the nice comfortable salary I once had!)

Our wives are very supportive. It does take a special and patient person to support someone starting a company. But I do think my wife is somewhat excited to see me actually follow through and finish a project for once :)

I showed her your blog and maybe she'll comment with some experiences or thoughts sometime. She went through the list of roles you had and agreed that she plays many of those.

Good luck with the blog!