Hey guys I just got my first iMac I was able to grab the 5k late 2015 with the 2TB HDD and M395. So this is all new to me. Where can i read up on all the tips and tricks of 10.11.x Ive been a windows user since 2002 so this is a new world for me i want to learn everything about this! Also feel free any programs that are great to have with the iMac and such. Thanks again!