As a consumer, you're faced with many purchasing decisions every day. Sometimes it can be difficult to make a decision, especially if you’re spending a lot of money.
But there are some online tools that can help:
1) Decide.com aggregates reviews, but unfortunately you have to pay $5 a month for the site's coolest feature which predicts the price for every product.
2) Lifehacker.com publishes monthly "when to buy" guides. There you’ll learn things such as the month of December is a good time to buy off season items like pools and golf clubs.
3) The Macrumors Buying Guide keeps you up to date on the constantly changing lineup of apple products.