First off, we're debating pure specs for cost here. That was agreement, right? Neither weight nor the OS nor tax were included. Bundled software does not equal specs, and if you want to go down that route, Windows apps similar to iLife are free for Windows.
Sorry, but HP's include a 1-year warranty. The warranty you selected was an additional accidental warranty which Apple does not offer.
I went for a dv7t series. I got $1479, to the MBP's $2800. Don't know how you got $2100. The HP I customized has a better graphics card, more HD space, 3GB RAM, and you can add Blu-ray for only $150. It has firewire (just look in the specs), and it's only 0.8 lbs. more than the 17" MBP, if that's so important to you.
It sure seems like you did something weird. This HP is half the price of the MBP, and yet has better specs, is barely heavier, and you can even get Blu-ray for $150.