Splurge and get the Harmony 360 remote.
I never, ever, ever, ever thought I'd say a remote was worth $100 ($70 after rebate.) but this thing is f'in incredible.
If you have a ton of components around your 360, DVD player, TV, reciver, PS2, Xbox, stereo, cable box/satellite box. It can controll absolutely everything under the sun in an unbelieveably simple fashion.
I don't think I've been as impressed with a handheld device since I got my Lynx 16 years ago.