I was looking to buy a new computer in the next 12 months but recent events are fast tracking that. I have a powerful tablet PC from work so I don't really need any more hardware just a screen because sitting at a home desk for 8 hours a day working on a table is not comfortable.

I spent the last two hours trying to find a reasonably priced monitor but all the big stores are sold out. Considering an all-in-one desktop but the reviews aren't all that great. Any recommendations from the more knowledgable and tech-savy PC users?

(I've considered the lowest end model of iMac but learning all those new shortcuts?)