[UPDATE: You can get £50 of XBL credit too for the same price]
Sounds like a good deal to us. Act fast and you might be able to grab a £50 PSN voucher code for just £40.99. The code will be posted to you rather than emailed, but will be dispatched within 24 hours of payment.
This is a belter of as deal, as the next best I can find via CD Keys and their 5% Facebook discount dropping the price down to £43.69, although you get instant delivery there.