Renee Zotov

That's really helpful, thanks Brian. 
It was definitely the 27" don't worry 😉

I've had a look and in NZ I found this website for the RAM, https://www.upgradeable.co.nz/collections/apple_imac/products/ua2897 
Is that the right one?

Cheers

Hi Brian,
I'm wanting to upgrade to a new iMac from my MacBook pro and am curious on what one to actually get.
Apart from knowing I need the most RAM I can afford I don't know the different between the different processors and what difference they make.  
Any advice is much appreciated!