K, so I am in my final semester for an Audio Post-Production program in college and have been looking at certain things for my personal rig that I can use if I were to do some freelance while looking for an actual job in the field. Certain features in pro tools 10HD that are also available in the complete production toolkit, are things I actually may miss in the future. now, Not planning on getting anything right away, as I have not developed a need currently. But just in my research/planning for the future mode currently. Certain features like VCA's (loved it when mixing for the video game mixes we did, movies etc), Surround Mixing, input monitoring w/e things I loved using in the schools studio that I don't have personally, I am hoping to one day get on my own personal rig. Now, the question comes down to Complete Production Toolkit or going HD in the future? I mean, at what point is there a difference? For instance, if I bought the CPTK and then in the future wanted to go the PCI card route or something to that effect, would I have to switch over to HD afterwards? Not saying it's necessarily going to be an issue, but I'm just getting a grasp on how things would eventually turn out. Is it a DSP thing? or what? Kind of not clear on the difference between the 2 options. Anyway, any help would be greatly appreciated.