Sometimes upgrading a computer (laptop) is easy and sometimes it is not an easy task. Here is the Step-by-Step guide to upgrade your laptop yourself. You can increase your performance of your laptop with these upgrades.
You can upgrade your RAM, Hard Drive, Optical Drive, Bluetooth and Wireless Card with little effort with this guide from pcworld.

1. RAM upgrade in 10 minutes
2. Hard Drive upgrade in 60 minutes
3. Optical Drive upgrade in 5 to 20 minutes
4. Bluetooth upgrade in 10 minutes
5. Wireless Card upgrade in 15 minutes

[ PCWORLD - Step-by-Step: 5 Laptop Upgrades You Can Do Yourself ]

From money.cnn

In the U.S., IPhone exclusive service provider AT&T will charge $199 for an iPhone with an 8-gigbyte hard drive and $299 for a model with a 16-gigabyte hard drive, as long as the buyer also subscribes to its cell phone service (2 years contract). It also will sell an iPhone contract-free, at $599 and $699 respectively, and then give buyers an option to use AT&T services without a contract.

While the consumer will be paying about $200 less for each iPhone, Apple is seen as making more money, thanks to the subsidies that the phone’s carriers, including AT&T Inc. (T), will pay. While the companies involved won’t comment on the plan, industry observers now suspect the subsidies may total more than $300 a phone, giving Apple an extra $100 or more on each phone sold.

[ New IPhone Rules: More Apple Revenue, Fewer Unlocked Phones ]