If the thought of cracking open your newly minted Apple TV doesn't make you weak in the knees, WeaKnees just started shipping its do-it-yourself hard drive upgrade kit. For $199, the unit lets you replace the drive in your Apple TV with a pre-formatted 160GB Seagate drive. You get the tools, setup pictures, and phone/email support. For an extra $49 they'll even install it for you. Sure beats the alternative.