What is a good fm transmitter?

Looking for a fm transmitter that works good but isn't pricey. I would like one that could charge your device at same time. Also want one that you could change your song without going into your ipod either via remote or button on transmitter. I've only found two so far that are decent but still not sure they what i'm looking for: http://www.walmart.com/...t/17176271 & http://www.walmart.com/...S/13449030. If you could please help me find the one i want that would be greatly appreciated!

I don't know of a good transmitter, but know of a great product that will work better, if your car is compatible. GTACARKITS.COM supplies ipod integration kits. You can find out if your car is compatible by using the pick your car tool on the left side of the main page. If it finds a kit for your car, your in luck. You will be able to listen to music from your device with cd quality, if your using an apple device, it will be charged while its plugged in, and that will also give you the ability to control your music with your car stereo controls. If it is not an apple device, it will be connected with the 3.5mm aux cable, you lose the ability to charge the device and control it from your car radio, but you will still get the same quality of audio coming out of your speakers.
The kits are all affordable, ranging from $100-120usd, and take people no more then an hour to install and get it working.