I went into pcworld last night and bought Microsoft Office (Student) 2007 & Norton Internet Security 2007 for £99.99.
The individual selling costs are
£99.99 - M/S Office (Student) 2007
£49.99 - Norton Internet Security 2007
I checked my receipt to see where the discount was, but it only shows the total £99.99. Perhaps it is buy MS Office and get Internet Security free? But, I'm not sure.
I also checked the webpage, but the discount was not listed there, so perhaps only instore offer.
Hopefully I will have posted a picture of my reciept in the comments page for you to see.