Simple: goto http://www.ryanair.com
Buy a flight from Manchester to Dublin. You can travel out on the 6th, back on the 7th for £18.99
Ryanair flies from Terminal 1. Whilst you're at the airport, visit the new HMV in Terminal 1 - see [url]http://www.manchesterairport.co.uk/manweb.nsf/Content/RETAILERHMV[url]
Pick up the PS3 deal whilst you're there.
For SpamJavelin and friends. Of course, you're welcome to vote cold, but find me a cheaper deal for a flight to Dublin and a PS3 first... lol