Ordering a new Laptop

[† Mute point]

Okay, so the title pretty much speaks for itself.

I don't understand the part number lingo that Dell uses, and I would prefer to buy from them rather than somewhere else simply because they've been good to me in the past. But I'll take what I can get if the price is right.

What I need from the laptop is the following.

15" display (720p or better resolution)

Minimum of a 4 core processor with 2.00 or more GHZ each (Or a dual with a minimum of 2.6ghz each)

6 or more GB of ram.

DVD drive.

Less than $1000 on the price.