If you appreciate the added value of the games, get the 7950 as it's a way better deal. If you want as much performance as you can get for your budget get the 7970. It's a tricky one though but i think i would go for the 7950 + the games as they are really good games .
Thanks for the reply, and yes I though both were pretty good deals but the 7950 especially!
The 7970 would be from eBay so I will see if I can lower the price and if not i will get 7950 I think.