Hi all i got a new pc recently and was thinking of downloading bitcoin core, whats the pro's and con's?
You should by all means download Bitcoin Core and run it for as long as possible (leave it open if you leave and you leave your computer turn on). By doing this you are helping the network. It is because of people running nodes that Bitcoin can function in the first place let's not forget that, so the more nodes the better.
Yes, exactly this! And if you have a powerful enough computer OP and you are saving your bitcoins in the cold storage as you have written why just not do it and help the network?!
With your configuration, you are not limited on resources. Your computer will work just fine even with the Core running! You will be doing a good deed for a community!
If you have a powerful computer, the Core will use very little CPU power. So it is better to run the wallet.