Development desk - power solution
In terms of sockets, for price then you can't beat IECs (kettle leads). They are cheap, but not very secure and might fall out easily. You can also get multi-outlet panels, as seen on the back of UPSs.

If you want something a bit more secure and easy to terminate, have a look at the powerCON from Neutrik. These will take 16/20A and are locking, so very secure. The only issue is cost, with each connector being a few quid each, depending on where you get them from.