D620 D/Port and S-Video

Hi,

I'm currently investigating candidates for my new laptop, and I might be interested in getting the D620. However the D620 is lacking S-Video port that I use from time to time on my current laptop. I know I could buy a full D/Port replicator, however I don't need other ports at all and I don't want something too big as this is only for occasional use. Also I just need to replicate the S-Video port so I don't see why I would need to pay more than $150 for just that! Is their a simple D/Port->S-Video replicator in sell at DELL. Or can I find it somewhere else? If not are D/Port spec public so that I can see if I can find someone that could make me one?

Thanks.