Cheapest around, although same price at ebuyer, but this is Amazon.
With the Logitech Harmony Adapter for PLAYSTATION 3, put your Harmony remote in control of your PLAYSTATION 3. It works with Harmony remotes to control your home entertainment system – including your PLAYSTATION 3.
It supports all 51 PLAYSTATION 3 commands, so you can control the XrossMediaBar (XMB), DVD and Blu-Ray Disc movies, and all other console functions, including power on and off.
The wireless link leaves your valuable PS3 USB ports remain available for other controllers, while the guided online setup walks you through getting the remote ready for your PLAYSTATION 3. The always-on adapter is AC powered – when you press a button on your remote, your PLAYSTATION 3 responds right away.