What's the obsession with DVD-RAM? AFAIK only those set-top DVD Recorders use them, most DVD-ROMs can't even read them, and they're about half the speed of DVD-R. Does it actually have any good points?
Anyway, I think after my 3500, I'll go with HD-DVD, I don't like Blu-Ray as it's Sony and apparently won't play in any current DVD drives.
Personally I'm about ready to give up on DL, it's way too expensive and prices aren't coming down quickly enough, plus the media is still at 2.4x whilst the burners are up to 6-8x and -DL hasn't even appeared yet.