It sounds like what you're looking for is best served by an incubator. Barring that, if you're in the valley (or even elsewhere) you should get involved with some sort of shared-working space like HackerDojo. From what I've experienced, the people and environment provide a nice expectation boost (it's very difficult to push yourself alone - much easier when people know what you're up to, and have expectations on you to succeed - then you have to!).
Best of luck!