OP
accordfire
Hmm, thanks for this reply.
On closer inspection of the monitors, each are using a 1.5A supply. Times three that's 4.5A.
As for the others, most of them come in at 1.5A with a few at 1A power supplies. The extension lead itself has a 13A maximum limit, therefore I think I'll be fine.
You asked for the advice my friend - either way you look at it, even if you're running three monitors at 4.5A, that leaves you a maximum of 8.5A not just on the remaining seven outlets, but for the whole socket. And if you have two full ones - well, you can do the maths.
I'm not being funny, my friend, but you did come in asking for advice - why dismiss it all?
Why bother?