For a drive with lightscribe, I'd look at the
BenQ
I don't follow lightscribe, but BenQ makes one of the best DVD burners, I don't see why their lightscribe model would be any different. I think NEC is supposed to have a drive with Lableflash to compete with Lighscribe, but I don't know anything about it.
Just pick up a DVD burner now. For about $50, it isn't a huge investment. It will still be awhile before you see HD DVD or Blu Ray burners, and when you do, they won't be cheap (and don't forget the cost of new discs). Even if you could get one at a reasonable cost in 6 months (which won't happen), $50 today on a DVD RW wouldn't be a loss.
Since this will be your first DVD burner, I'll give you a heads up on media. Unlike CD-R's, you should be careful what you pick up.
Video Help is a good place to check what media is used by various brands. The best media is TY and MCC. Keep your eye on staples to have Fuji DVD's on sale, these are a good bet for TY media (check if made in Japan). Also, watch OfficeMax to have a sale on Verbatim, these are MCC discs.