After the NXE launch i'm eager to upgrade my piddly 20GB HDD but can't justify the cost at this time of year. I thought I'd post where I've seen the cheapest options for anyone else who wants to do this. Some retailers are obviously more expensive but you might have vouchers/reward cards so they're listed anyway.
Bear in mind if you trade in your old HDD you need to backup your data before taking it instore! If you have no current storage be aware you can also get a memory card/HDD from Microsoft for free/a few quid http://www.xboxstorageupgrade.com/hh...entication.jsp
Gamestation (instore):
Trade in Value of 20Gb HDD = £25
New 120Gb HDD = £69.99 (cost £44.99 after trade-in)
Used 120GB HDD = £59.99 (cost £34.99 after trade-in)
New 60Gb Starter Pack = £59.99 (cost £34.99 after trade-in)
Possible 10% student discount in-store.
CEX:
Trade in Value of 20Gb HDD = £26
Used 120Gb HDD = £80 (cost £54 after trade-in)
Game.co.uk
New 120GB HDD = £97.86 (+979 reward points) http://www.game.co.uk/Xbox360/Hardwa...s=120gb%20xbox
New 60Gb Starter Pack = £58.71 http://www.game.co.uk/Xbox360/Hardwa...?s=60gb%20xbox
Amazon.co.uk
New 120GB HDD = from £84.64 http://www.amazon.co.uk/gp/offer-lis...9519477&sr=8-1
Used 120Gb HDD = from £81.93 http://www.amazon.co.uk/gp/offer-lis...9519477&sr=8-1
New 60Gb Starter Pack = from £58.71 http://www.amazon.co.uk/gp/offer-lis...9519477&sr=8-2
Gameplay.co.uk
New 120GB HDD = £97.86 (out of stock) http://shop.gameplay.co.uk/webstore/...uctcode=XT1197
New 60Gb Starter Pack = £48.93 http://shop.gameplay.co.uk/webstore/...uctcode=XT1431