Hi. Looking to invest in a PS3 for Christmas for the family. Had sooooo much fun on the Sing Star games at a party recently (had never ever heard my husband sing up to that point and judging from his 'performance', I now know why, LOL. Thought it would be useful for the Blu-ray facility too - 2 for the price of 1. I know that Sony have upgraded the consoles to 160gb and 320gb but as a complete novice to PS3, can anyone steer me in the right direction as to which one to get, and who are the best retailers to watch for the best forth coming deals - preferrably online.