Looks like really good value:
To find out more about the Studio family products see SonyMedia's Website. Personally I wouldn't bother with Photo Go as it is pretty cheap anyway. I have never seen American Idol Extreme Music Creator so can't comment but it looks pretty lightweight stuff.
To pace an order for this special offer use this order form link.
Note that these are the consumer level versions of the professional products. I haven't used these at all but the pro versions are superb (esp. Vegas, Acid and Sound Forge) but if I were using this offer they would definitely be the three to go for.