Need help to assemble a PC

Please help me in selecting components for upgrading my old PC. I am reusing a few of the old components and I need help to decide the new ones.

Components that I already have:

Monitor : LG 19M35 18.5" (1366*768)

Cabinet : HCL Beanstalk Cabinet

Optical Drive : Asus DVD super multi drive

Keyboard + Mouse

I need help in deciding :

Processor
Motherboard
RAM
Hard disk



1. What is the purpose of the computer? What all applications and games are you going to run?

Ans: MS Office, VLC, Chrome,IE


2. What is your overall budget? If you can extend a bit for a more balanced configuration, then mention this too.

Ans : Max 12 - 13 k

3. Planning to overclock?

Ans : No

4. Which Operating System are you planning to use?

Ans: Windows 8.1

5. How much hard drive space is needed?

Ans: 500 GB

6. Do you want to buy a monitor?

Ans: No, already have LG 19M35, 18.5", 1366*768

7. Which components you DON'T want to buy or which components you already have and plan on reusing?

Ans: Mentioned above


I also have to mention that I don't need a graphic card.

8. When are you planning to buy the system?

Ans: Within a week

9. Have you ever built a desktop before or will this be done by an assembler?

Ans: It will be done by an assembler.

10. Where do you live? Are you buying locally? Are you open to buying stuff from online shops if you don't get locally?

Ans: Most of the online stores don't deliver to my town, so any component which is easily available locally is preferable.

11. Anything else which you would like to say?

Ans: I did a little research and found a few components but am not sure about their compatibility and that's where I need the help. Here's what I found to be best and in budget :

Processor : Intel Pentium G2030
Mobo : MSI H61M-P2O (G3)
Hard Disk : Seagate ST500DM002 500GB or WD Caviar WD5000AAKX 500GB

Need advice asap, so please help, guys!!