I just bought an ipod nano for my wife. I want to get an "dock / FM modulator" for it so she can use it in the car. What are me options?

I see a lot of different manufacures making them, but I don't want to make the rookie mistake and by the first one I see. That's why I'm here, asking the best and the brightest!

Bought a Griffin itrip for my daughter. It's not the least expensive, but it works great. They have different kinds (with holder, without, etc. at various price points.) Look on ebay, you can get them for less than the Griffin website price.

I ended up geting the Monster cassete adapter from the local Apple Store. It was horible! Brought it back for a full refund.

I found an off-brand cassette adapter from HomeDepot for $15 and it works fine. It's not the best quality of sound but it works and it's cheap.

dlo makes a good fm dock/charger.