I need to buy a laptop, for possibly under $ 2000i'm into wide screen laptops wid entertainment features n a camwhich laptop would be the best one to buy?
For 2000$ you can get the macbook pro with the following specs: 500GB Hard drive 15 Glossy Widescreen Display 4GB of RAM Backlit Keyboard 3 USB 1 Firewire 800 1 SD slot Minidisplayport Fast Intel Core i5 CPU @ 2.53ghz
None of the previously named can go against a custom built computer, it can be perfectly built according to your needs and budget, a correctly built custom computer can out perform an alienware, no contest.
Based on the Laptop Reliability Study that Life Hacker did, the laptops that are the best for reliability are from Asus, Toshiba and Sony. Based on what you want to do and your rather generous price range, I would recommend this Toshiba laptop from Newegg. This laptop has more than enough power and features to do everything that you want.