Hey all! Looking to buy myself a imac mainly to be used for video and photo editing and as a main computer(the move from pc to mac etc)and all other computer stuff. The thing is I cannot decide on what CPU or GPU to chose, iv been looking on the apple site for just over 2 weeks trying to decide what specification to chose and also doing research into mac etc. Ram is not a issue because I know that can be upgraded in the future if needed. I cannot seem to work out myself if I will need to extra power in the future, yes I know it will be good for the future but is it worth it for a 1st mac computer? Specs so far: 27-inch iMac 3.1GHz Quad-Core Intel Core i5 or 3.4GHz Quad-Core Intel Core i7 extra £160 4GB ram 1TB HDD AMD Radeon HD 6970M 1GB or AMD Radeon HD 6970M 2GB extra £80 Thanks in advance for your help guys also how did you find the switch from pc to mac?