I am looking at getting a new desktop mac to mostly do video work. I currently own a MBP to do all of my editing, syncing audio and video, and urning the movies. Using toast some movies can take up to 2 hours to burn to dvd, and am looking at a desktop that may do things quicker. I am not looking at spending alot of money, but would like 2x superdrives to burn 2x the movies (I need many copies of each family movie burnt). I do not know a whole lot about computers, but was thinking about picking up a mac pro. Not sure if octo core would be best, or just quad? If a refurbished computer would suit my needs or not? Any opinions would be great, thanks.