I do alot of work with first time homebuyers and am very familiar with Plymouth as well as Bristol Counties.
My suggestion is to conncect with a Realtor, it is always better to work with one person that you feel comfortable with. Your agent will gather information on what you are looking for - make a list of the things you absolutely have to have and those that you would like, your purchase will probably be somewhere in the middle.
Your agent can then set you up with an automatic email that will advise you of new listings as they meet your criteria. By getting the emails you will become familiar with different properties, amenities, areas and prices. This will help you to pick out which properties you would like to look at.
I'm not sure where you are in the process of getting preapproved but many people start with the email updates a year or more before they buy.
If possible, is is best to buy by December 1st to qualify for the tax rebate offered in the tax stimulus package, between that and the low mortgage interest rates will make it possible to get a better deal.
I would love to work with you, give me a call at 774-766-8439 or email me at firstname.lastname@example.org and we can discuss your criteria and plan.