Yeah! I've had TWO cartoon series in the back of my head for ages! Two shows that I loved, but saw very rarely.
I just found out the name of one of them.."Pirates of Dark Water"..LOVE that show! probably one of the greatest from that time!

but there's one more..which I just HAVE to find out..for peace in mind!

I don't know so much about the plot, I can only remember the beginning..the intro.

A couple of kids are on this..weird dark theme park. and the go on a roller coaster and they come in to this strange, dark world..where a dark lord rules. they all get some sort of special powers there..but I can only remember one of them. one red-haired girl with a purple cape with a hood. so when she put on the hood she got inviceble.

please..does anyone remember anything recembling to this??

does anyone know if Pirates of Dark Water will be available on DVD soon?

Could it be "Dungeons & Dragons"?

Sounds like Dungeons & Dragons to me, as well.

Pirates of Dark Water isn't coming to DVD right now, but I think it still plays on either Cartoon Network or Boomerang. If you have a Tivo, you can search for it and record the episodes, it's the next best thing.