calciumiscool

Hi I am looking to buy a new laptop that I can plug into my computer monitor as well as use on the go.

Budget: around $700-$900
I would like the laptop to have good battery life (3+ hrs) and at least a 15.4in screen (bigger would be nice too)
I will be using the laptop mostly for day-to-day activities, that is, internet browsing, DVD watching, music listening/downloading, burning CDs, word processing, Photoshop, and some video editing
I am a big multitasker, so I need something that will allow me to use lots of programs at once without freezing up or shutting down. Also, it would be an added bonus if it starts up relatively quickly
Built-in webcam would be an added bonus
Windows Vista please
Hard drive can be whatever size; I have an external

Above all, the laptop that I am looking for should be fast, with no lag or freezing. I don't know if what I want is possible within my price range, and if it's not, if you could give me some recommendations of computers that may not have all of the features that I want, or may be out of my price range, they would be greatly appreciated. Thanks in advance