Why not let Bristol Computer Support set you up with 2 screens? Most PCs already have the capability, and even if your PC does not – a cheap addon graphics card will resolve that problem!
(1) It’s low cost, a typical screen is £80, plus a graphics card £35 and some labour to install.
(2) Twice the desktop size – you can be reading information on one screen, while editing or designing on the other.
(3) It’ll save you money – no need to keep printing information out. It’s less expensive than buying one large monitor.