Hello, I'm hoping I can get some advise from you guys. I've never owned an iMac before and looking and either getting the 21.5-inch iMac w/Retina 4K Display 3.0GHz Processor OR 3.4GHz Processor I would not mind upgrading to the 256GB SSD - which I've read is way faster. Basically, this is just a computer I want for basic usage: surfing the web, watching YouTube videos, working from home on Word/PowerPoint/Excel, email. We dont do gaming or edit photos or movies or anything like that. However, the computer I currently have is a HP and and SUPER SLOW! I want to throw it out the window!!!! It takes forever to turn on or wake up and cant do too many things at once such as work on a word file and look up something on the internet and maybe send an email too. If I do think it will slow down again and freeze and take FOREVER to work property. Its probably close to 10 years old. (Yes, time for an upgrade.) I would also purchase an external hard drive to save files. Would I be safe in buying the 3.0GHz processor for the basic work I will be doing on it? Will it continue to work and not slow down in time?