I am looking to get either a 16GB SDHC card or a 16GB USB flash drive (or larger) to be used exclusively with my F700BT for video and music. The USB flash drive has the advantage of easily being transported on a key chain or some such and easily being connected to any PC. The draw back of the USB drive to me is that it is going to be a little more of a pain to connect, I will have to find a clever spot to route the USB input cable and place the thumb drive.

Any suggestions in terms of performance or other advantages of one over the other?

I use a thumb drive for my music. I took the USB cable and ran it through the dash to the glove box. That way it's easy to get to and out of sight and out of the way.

have you tried any video? What size and brand USB are you using?

I have an 8Gb SD and 8GB USB, the SD is much faster to access on bootup for me.

Never had much luck getting video's in a format it would play on iether so cant help you there.

I'm using a PNY brand. And I have not tried the video.

Video works fines as long as you keep your video viewing size below 620x430.

based on everything I read I decided to go the IPOD route, I had a small 4 gb SD card and found the performance to terrrible particularly at startup and when changing between folders etc. I got a 30gb IPOD on buy.com for $99 shipped....that is pretty tough to beat considering I would have spent at least $50 on a similar size SD or USB drive.