I realize that I will want to have two CD drives in my PC (disc-disc copying), but what would the best combination be? My thinking is that if I have a DVD-R, I'll have CD-RW capabilities with it, and would only need a CDROM drive (since the DVD-R will play DVD movies as well). However, I'm concerned about the wear and tear on the DVD-R drive for burning a lot of CD's. Wouldn't the best combination be a DVD-R and CD-RW?