HD Video Editing and Multimedia Design

APPROXIMATE PURCHASE DATE: 1-2 Weeks

BUDGET RANGE: Up to $1,500

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT:Editing high quality HD video, multimedia design (Adobe CS4/5 programs) internet surfing and watching movies. I would prefer a laptop, because portability is pretty important to me. But if I absolutely need a desktop then that's fine I guess.

PREFERRED WEBSITE(S) FOR PC: Newegg

COUNTRY OF ORIGIN: USA

WHY PREBUILT VERSUS CUSTOM BUILT: I don't think I have the time or necessary knowledge required for a custom built.

WOULD YOU CONSIDER A CUSTOM BUILT INSTEAD: As long as it gets my work done and doesn't cost any more than a pre-built one.

PREBUILT SYSTEM LINK:
ASUS G Series G51JX-A1
http://www.newegg.com/Product/Product.aspx?Item=N82E16834220688

Sidenote: I was looking at macs as well because a lot of people say they are better for things like film making and multimedia design. Is this true? Getting a mac seems dumb though because they cost more, for worse parts. But maybe they work better even with worse parts? I have no idea. It's so confusing. Anyway, thanks for all the help!