RM are selling Microsoft Office Professional Plus 2010 for £39.07 including VAT and delivery (it is quoted at 3-4 weeks).
It includes the 2010 versions of
"Parents, guardians and carers etc. can buy on behalf of students if for student home-use. Students must be enrolled in the UK or Northern Ireland, and shipping is limited to these areas.
Microsoft software doesn't come with a manual or box, it's CD-only. It comes in a nice CD sleeve though, and the product key is on the back.
You can install Microsoft Office software on up to 2 computers. E.g. one could be a desktop and the other on a portable device like a netbook. Both should be for the exclusive use of the licence holder (the student!)"
Software for Students are selling the same thing for £41.90 http://www.hotukdeals.com/deals/microsoft-office-2010-professional-/697069
This deal is mentioned at the bottom of that thread. RM were charging ~ £50 for this deal a month or so ago.