I have a idea I believe in (but of course startups are risky) and have some angel investors with interest, but discussions haven't gone very far yet. The risk,

I have a idea I believe in (but of course startups are risky) and have some angel investors with interest, but discussions haven't gone very far yet. The risk, at least financially I think is pretty minimal. The initial cost wouldn't be very high and I'd get some investors before proceeding too far into it. The cost is mostly time / opportunity cost and life style I think.