Intel Desktop Board DG43NB (5.1 Dolby, supports upto 800 MHz RAM)- 5000
OR
Desktop Board DP45SG - 8000 (supports 1333MHz FSB; you can take full advantage of processors and RAM mentioned below; 7.1 dolby surround)
Intel Q9550 (2.8GHz, 1333MHz, 12MBL2) - 11,500
OR
Q8400(2.6GHz, 1333MHz, 4MBL2) - 8,500
Transcend 2 / 1333GHz (DG43NB Mother board may not support 1333Mhz) - 2500
Seagate SATA 500 GB - 2400
OR
1 TB - 4000
Samsung DVD Writer - 1000
Zebronics / iBall Cabinet with 750W SMPS -2000
Microsoft Multimedia Keyboard and mouse - 600
For monitors please refer Digit August magazine AOC is rated the best. you can get 17" for 5500
Optional
Creative 5.1 speakers - 3,500
OR
7.1 - 6,800
Both motherboards has DVI 1 ports, so a graphics card is not neccessary unless you are a gamer or multimedia craver.
If you are selecting the best config mentioned here, you will end up around 27k