Is this possible?
Can i get a usb to VGA lead and get windows to recognise it as another monitor?
Can I get a mini PCIE graphics card?
Can I get a usb to DVI lead and get windows to recognise it as another monitor?
USB to DVI exists according to google
You can get a VGA splitter from matrox (double/triple head to go), but it's not cheap.
I don't want a splitter as it needs to extend the desktop not duplicate it.
£40 is not cheap....
http://www.overstock.com/Electronics/StarTech.com-USB-DVI-External-Dual-Video-Adapter/4567941/product.html?cid=133635
Can you upgrade your video card and buy a hdmi cable?
Are you using a closed system?
Splitters do extend the desktop (the matrox ones do anyways) I use one at work for exhibition stuff, but they're well over £100 so defo not cheap.
Upgrading the graphics card would be my favoured option, but that will most likely cost at least £40, if it's even possible on your system.
I dont think the box has room for a full size graphics card its a little thing. mini PCIE only.