Gamestation was running this offer throughout the weekend but i thought i'd relist this offer as it's been slightly altered and extended until stocks last.
The previous offer was identical but instead of being able to choose any game, you now have to have Rainbow Six: Vegas instead, which is supposed to be a great game anyway.
By purchasing this pack, Gamestation believe you're saving around £130.00, so despite not mentioning if it's the premium pack, it does state the consoles normal price is £279.99 in your basket, which is the retail price of the premium pack.
Please remember to look at my other and other members xbox 360 posts, as there's some very good deals already mentioned for games, so you might want to buy games like pro evo 6, splinter cell, gears of war etc seperately to maximise your saving.
I also think quidco offer 3% cashback for console purchases, which means you'll receive a further £9 return, meaning you're buying all the following for £291.00:
xbox 360 premium pack (includes harddrive, headset, wireless controller etc)
additional wireless controller
Rainbow Six: Vegas
Battery recharge pack
Xbox live arcade unplugged.
So in my opinion, this is probably the best xbox 360 deal i've seen after there weekend offer of any game instead of Rainbow Six.
Also note that this offer should be availble in your local Gamestation as well, so you can start playing immediately :)