Hello,
I was wondering if someone would give me some advice. I am a PC Technician and would like to learn how to repair Macs and use the software; I have never used a MAC or repaired one. I was going to purchase a used MAC to practice with, but I don't know which MAC to purchase. Where do I start?
PLEASE HELP!!!!!!

I was wondering if someone would give me some advice. I am a PC Technician and would like to learn how to repair Macs and use the software; I have never used a MAC or repaired one. I was going to purchase a used MAC to practice with, but I don't know which MAC to purchase. Where do I start?
PLEASE HELP!!!!!!