¿What Product Do I Need?

Hey guys! I’m psyched for XBox 360 to come out, and I was wondering if something is possible. I want to use my laptop as a screen for the Xbox, as my TV’s are all non-HD, yet my laptop is 1920 * 1200. The facts:
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[]my laptop: Compaq Presario X1000 with a PC card slot, VGA port (don’t know if that helps, don’t know what it’s for :P), USB ports, Firewire Mini, S-video (don’t know which way its meant to go). It has a 1.6 Ghz Centrino Processor
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]The XBox 360: Outputs component HDTV, or just normal stuff or S-video which is no HD
[/list] So I’d need a “tuner”, i guess, in order to take the component HDTV signal, output it to my laptop probably via the PC card, USB, or Firewire, and then display HDTV at relatively good quality and least lag, etc. I can spend a fair amount on this. So any of you guys know of a solution?

I’ve been looking at AverMedia stuff, but it appears the only HD things they have are for PCI cards…