While we wait for the phenomenon that is wireless HD to actually matter, D-Link's forging ahead with technology that's here, now. Starting today, the outfit is shipping a new PowerLine kit that can stream high-def footage throughout a home's integrated electrical wiring system. In other words, it's not wireless, but it's far from being messy. The PowerLine HD Ethernet Adapter Starter Kit (DHP-303) includes a pair of wall plugs / adapters which convert power sockets into access points for streaming media across the network. D-Link promises that users will see up to 200Mbps of thro