Netgear XAVB5001 Powerline AV+ 500.
If you can't run cables around your home because it is complicated or you're renting, and wi-fi isn't up to the job, consider running your internet connection through your electrical wiring using powerline AV adaptors.
Simply plug one adaptor into a power point near your broadband modem, then connect it to the modem with an ethernet cable. Now plug a second adaptor into a power point elsewhere in the house, such as alongside an internet-enabled Blu-ray player in the lounge room. Plug the player into the second adaptor and, presto, it's connected to the internet via your electrical wiring. You can place several powerline AV adaptors around your house.
Netgear and D-Link's Powerline AV adaptors promise 500 megabits a second but, as with all networking speeds, take this with a grain of salt. You'll be lucky to get a quarter of that speed, depending on the condition of your electrical wiring and the distance between the adaptors. They're not as fast as a straight ethernet connection, but they're less prone to interference than wi-fi.
D-Link DHP-501 AV Powerline AV 500.
There's no configuration required, just plug in the adaptors and they find each other. Running across a room, the D-Link adaptors clocked 129 Mbps to Netgear's 67 Mbps. But once the adaptors were several rooms apart, D-Link speeds plunged to 36 Mbps while Netgear offered 44 Mbps.
Over short distances the D-Link adaptors are considerably faster but speeds drop quickly as they get further apart. If you're linking devices at opposite ends of the house, then the Netgear adaptors should offer better results.
Netgear XAVB5001 POWERLINE AV+ 500
D-Link DHP-501AV POWERLINE AV 500