go with the GTX 970 (any of them will have good performance)
About the other components is hard to say, you will have to check what your needs are:
check if you need more connection than the motherboard H81 I suggested have, if yes, you can get a better motherboard (if you have specific need about any feature on the motherboard you can tell and I will try to help you find one that have it)
You can also go with a 2x4 gb ram, instead of 1x8 (it will be faster buy you wont be able to upgrade to 16gb without removing the ram you buy now);
and you can buy a better PSU another good option for PSU:
http://www.flipkart.com/seasonic-s12ii-520-watts-psu/p/itmd5xz5hzvzt9cx?pid=PSUD5XZ4KFH65H9E&ref=L%3A-6291880438250454345&srno=p_1&query=seasonic&otracker=from-search
http://www.flipkart.com/seasonic-s12ii-520-watts-psu/p/itmd5xz5hzvzt9cx?pid=PSUD5XZ4KFH65H9E&ref=L%3A-6291880438250454345&srno=p_1&query=seasonic&otracker=from-search