I don't have a DVD drive/burner

I know they're hella cheap, but I really have no need for such a drive ATM. Should I just wait for HD-DVD/Blu-Ray or go for DVD now?

Not OP here,
I have a CD-R/RW burner on my computer. To burn DVDs do I need a seperate burner or is there some software I can download that will make it possible?