Ive just bought a mac pro and want to make it capable of handling 2k red footage. Is my system enough!? Its a 3ghz quad core duo with 4gb memory and a geforce 8800 card. Its also has no raid card. Im confused as to whether you need to use a raid card and drive set up or whether it can work with my existing drives? I have a 320gig internal drive and a 500 gig external Mybook drive. Thanks for any help you can give!