As you'll see when you start browsing, there's a whole lot to choose from. When reading a computer magazine for advice on what to buy, read between the lines to see what points of view the writers have about technology. Know what the magazine you're reading is like, so you know how to take the writers' advice. They often also offer advice on what computers to buy. If you're looking for a family PC, these magazines are great places to turn.
Most computer magazines combine buying advice with articles on how to make best use of computers.
You can read reviews online from many newspapers and magazines, and from computer sites themselves. They're able to tell you about their experiences with specific makes and models and manufacturers, and can give you hard-won advice on mistakes they've made. There's no better way to get the inside dope than by talking to others. Look for computer user groups in your area. You should also check into Usenet newsgroups.