Apologies in advance if this doesn't work, as I havn't tried it myself yet, but the theory seems good.
HMV are selling the PS3 for £424.99.
If you are a student and a Barclays customer you can buy Waterstones vouchers at a 15% discount using your connect card or barclaycard, these vouchers are also redeemable at HMV. So £425 of Waterstones gift vouchers should only cost you £361.25!
I think this only works for students - but they'll do anything for a pint, get one to buy the vouchers for you.
Apparently you can get it even cheaper:
If you can get 10% off instore at HMV with an NUS card (if it can be used on consoles) or by opening a storecard account, that will bring the initial HMV price down to £382.50 - Meaning it will only cost £325.13 for the Waterstone gift vouchers!
Thanks to jayhab and superthomo for the info on the extra discount.
- bod emrys
I think you should change that last line to 'possible extra discount'
Edit - "simply call free on 0800 028 6239, provide us with your Student Barclaycard details, the amount of vouchers you wish to order (in multiples of £10) and we will debit your account with 15% off!"
-Thanks to Firespire for that
- bod emrys