Here is my choice, its welcome to comment
Cpu:
Intel Core 2 Duo E6300 (1.86GHz) CPU/2MB
Intel Core 2 Duo E6320 (1.86GHz) CPU/4MB after 22/04
MB:
GIGABYTE GA-965P-DS4 Ver.3.3 P965 M/B (1st choice)
GIGABYTE GA-965P-DS3P Ver.3.3 P965 M/B
ASUS P5B-E PLUS P965,1394 IEEE(TI Chips) M/B
RAM:
DDR-2 800MHZ Ram 1GB x 2
Brand like consair, ocz, super talent, g.skill are ok
DISPLAY:
GeForce 8800GTS 320MB GDDR3 PCI Express x16 HDCP Video Card
if you have money
Or wait until end of april to get Geforce 86 series
perferene brand: XFX, Galaxy
HD:
SEAGATE 250.0GB SATA2 16M NCQ
you can choose the size you want.
I prefer Seagate.
DVD-RW:
18 x Super Multi DVD Writer.
Personal preference brand: LG, Pioneer, Sony
PSU:
Power at least 450W. But best to buy a more powerful one, allow for future upgrade.
Brand:ENERMAX, TAGAN, Seventeam, AcBel, delta, seasonic, xilco, etc
Case: best to have 12mm fan. Or you may need water cooling. I think india is hot...