my 360's broken

i bought my 360 3 months ago and its been prefectly fine till a couple days ago. i put in a disc and i heard a loud scratching and skipping sound and when i opened the tray the disc was still spinning.

HELP

If you bought it from a store,,, take it back there cos they should have a 12 month warranty on it! And if you do they could maybe swap it for a new one there and then... If you send it to Microsoft they could take ages, plus you have the postage worry!