It’s that time of year again, folks. Whether you’re a freshman heading off to college for the first time or a returning student, you’re going to need a good laptop that will last you through your school years (and maybe beyond!). But finding the right laptop for your needs can be like searching for a needle in a haystack–daunting. What screen size should you spring for? Do you really need an all-powerful processor for research and general web browsing? Fortunately, I can help. In addition to overseeing PCWorld’s laptop reviews, I also maintain our top pick roundups such as best laptops and bes…