I'm two thirds through a very similar process. I quit my job in late Dec 2011 and temporarily moved myself and my girlfriend in with my folks. 5 months, 1 pivo

I'm two thirds through a very similar process. I quit my job in late Dec 2011 and temporarily moved myself and my girlfriend in with my folks. 5 months, 1 pivot and ~£8K later I'm almost ready to release a public beta. With a bit of luck, this will happen before the end of June. I've then got a further 6 months left in the budget to feed us until the site (hopefully!) starts bringing in enough money to live off. Failing that, it's back to salaried employment (if any one will have me...)!