I've never really found a video for martial arts that I thought was effective training, so I can't offer any advice, sorry. Anyone I've ever watched has not compared to in school lessons by a decent instructor.
You can't replace hands on work with a video. You should seek out a place to train. Many martial art schools also train MMA style or know someone that does. A little networking can go a long way!
You can't find any really good videos. However, I just net flixed a BJJ video and I will be copying it. If you want a copy let me know Ill send you one. Not sure how good it is yet, I haven't watched it