I was just browsing through the argos website and found this deal.
It is ps3 only though, but still a great price for those that want one.
* Rock Band delivers four music games in one - challenging rockers to master lead guitar, bass guitar, drums and vocals.
* Built on unprecedented deals with top record labels and music publishers, the music featured in Rock Band spans all genres of rock and includes many master recordings from legendary artists.
* For ages 12 years and over.