If you've just picked up a new Windows 7 computer, or perhaps wiped an old Windows XP system to add the new operating system, you may well be needing some new software to go on it.

For many people the most essential software is an office suite and anti-virus protection. If that's the case for you, we've found an ideal bargain - if you can act quickly.

For one day only we've found a store selling both Microsoft Office 2007 Home and Student edition - that's the best value version of Microsoft's latest Office suite - and a three-user copy of Kaspersky's latest Internet Security suite for just over £55. Considering that Office alone will normally set you back £60, this gives you a saving of at least £30. Click the jump for details.