XBOX 360 HDMI and hd cables- component?

I am planing to get a xbox pro system for 250. Does it come with hdmi cables if not, whats the best cable to use included in the box for HD or best graphics expeirience. if the hdmi cable is not included is the hdmi a huge difference between the component cable and should i get a hdmi cable, otherwise is it worth buying it.
PS.
i have a new 55 inch samsung LED tv series 8 1080p whats the best cable included in the box to get the best resalution(question up there)

Hey ,
I use my HDMI cable… It works better… better graphics and quality!

Series 8 Samsung 3D FULL HD LED TV

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