Hi,
Cheap and cheerfull ....
2 of these @ £35 each ? You can buy doors raging from £6 upwards including clear / frosted glaxed doors @ £15 ish I think - they do have some nice dark finishes too.
Can be mounted on wall to give a floating shelf effect - albeit cabling may be difficult we are thinking of some getting some L shaped brackets made up to site unit on to give floating appearance with option to then to easily remove units for future cabling ...
http://www.ikea.com/gb/en/catalog/products/20102149