Im fairly new to macs and about 3 weeks ago, I got a used B&W for free. I really like macs alot and I need to upgrade. I am going to do medium video editing and photoshopping. I dont know if an iMac will be enough but I also dont know if I really need to buy a mac pro. Would an iMac probably be enough? Also, I get a little wiery of all in one computers.