Hey guys thanks for the quick answers.
I can see that 2gb would be overkill but for the small price increase it'd be good to have a slightly more futureproof gpu. Are you guys saying I should get the 1gb simply because the extra memory would be useless to me? Because i wouldn't mind spending £15 more to go stupidly overboard.
thanks again for the great answers to my first post.
*edit* When i mentioned clock speed i was talking about the GDDR5 speed not the actualy gpu without realising so that was dumb of me, ignore that comment.