Hi guys, I know asking which imac to buy have been asked a zillion times but I appreciate if someone can help me out. After surfing the net for a suitable mac for my home use, I made the decision to purchase a 27" 2.7ghz iMac (no upgrades except for the ram). I went to the store today with the intention to purchase one but the salesman suggested that I buy the 3.4ghz i7 instead after I told him what I'll be using the iMac for. I'm not sure if he merely wants more commission or i should really get a better one. I will be using the iMac to surf the net, transfer music from my iTunes to my iPhone, watch movies online and edit photos with photoshop. I'm just a photography hobbyist and i usually edit my photos twice or thrice a week. (sometimes not use photoshop for weeks) As for games, i will probably only install The Sims. So do I really need a 3.4ghz, get a 3.1ghz or just stick to the 2.7ghz? Should I get the magic mouse or trackpad? Thanks in advance for your advice!