Mobo is not worth the money. It's got driver issues(as someone mentioned on NewEgg) and has only 4+2phase design which is not recommended for overclocking. Try to find the ASRock Z77 Extreme 4 or at least ASRock Z68 Extreme 3 Gen 3. If ASRock is not at all available then go for ASUS P8Z77-V. It's a little more expensive but it's a great board with great reviews.
Don't buy Sony drives, they go bad pretty fast. try to get the ASUS one from flipkart.
Corsair 300R is a good cabinet.
I've no idea about monitors
PS: You're being grossly overcharged for the RAM. I bought the exact same for 2000(though it was a pricing error on flipkart). Market price is around 3000 so it's still 1000 overcharge which is stupid! Also you're getting a real sweet price for the i5-2500k. Grab that first before the shopkeeper changes his mind