Car Radio Transmitter I Bought A 30gb Video Ipod, Where Can I Get A Good Car Radio Transmitter?

I bought a 30gb video Ipod, where can I get a good car radio transmitter? - car radio transmitter

I have a 30GB iPod Video, where I can be a good car radio to get a transmitter? I listen to my iPod in my car, but do not have a AUX jack. Do you know a good brand?