Research and planning is always a good idea, but you may be getting too caught up in the details of it all. Be honest with yourself -- are you looking for an excuse not to move forward? The time has come for you to get active ... and if everything isn't crystal clear, just use your imagination to come up with guesstimates that will fill in the blanks and keep you going! If you need to make revisions, you can always work them out as you go along. Today it's important to make a commitment.