^^You cant get i5 in 30k budget you need 35k-40k for those 3 things if you want i5 or you could just use i3 for now and later change since u wont have to change ur mobo. 1156 platform.
i5 750: 18k
So even if you buy the cheaper mobo it will cost you 34k.
Or you could go with used
Total 28-30k now sell 4850 for 8k add 5k and get a GTS 450(new) or 5770(used)