I have asked this before, and got a great response. However since I ask the original question I have upgraded the motherboard and I'm not sure the GPU suggested in the original thread would be the best for budget.
I have a budget or no more the £170 ($270)
Gigabyte Z77-D3H
Intel i5-2500 (3.30Ghz)
16GB of Mustang DDR3 1333
Nvidia GT218 Gforce 210.
256GB SSD
A R9 270X card was suggested, is that still a good option?
If the price on that 270x(or a 7870) hasn't jumped,then yes,it is a great buy.The prices on AMD card hve gone up due to crypt0-currency mining. If you can find a 79x0(280x) at your budget,get that.