Hi.... Very first post after registering...... Need the forums help!!! Am ready to order/purchase my very first IMac however am really not sure which one to go for!! Will def order the 27inch with 1TB fusion drive however.... What is the best processor to go for....i5 or i7....?!? Also what is the best Ram.... Start of with 8 or upgrade to 16?!? Also do I get the better graphics card with 2gb Ram.... Also how easy is it to upgrade Ram after purchase as many people seem to state!? My use will be the usual Internet/emails.... Light gaming.... Photo editing of kids pics & small video clips taken on IPhone!!..... Also want to download Kids DVD collection for apple sharing via iPad/Apple TV in the house?!? Confused as to what is necessary? Any help/advice welcome.