Even I wonder why you've titled your thread as such.
Anyway, you could consider this (prices are approx) :
Processor - AMD Phenom II X6 1055T Rs 11000
Motherboard - ASUS MM4A 785TD Rs 7500
RAM - 4 GB DDR3. I can't list any brands since I don't know if your local retailer will have them. So just ask him for a 4 GB DDR3 kit. Rs 5000
Hard disc - Western Digital / Seagate 1 TB Rs 4000
Graphic Card - Nvidia GeForce 9800 GT Rs 6500
Case + Power supply - Rs 3000
Total - Rs 37000.
I have listed all this assuming you'll be buying from a local retailer. Here are two very good sites to browse the products:
quad core configuration is suggested by one of our friend who is dealing with the cctv, and there saying is that this configuration is better than the i5 configuration, in terms of system stability.
Today, any modern pc with the latest components is rock stable. System stability is compromised only in extreme cases, like when you overclock ,ie, try to increase the processor speed beyond it's stock speeds, & the resulting heat issues that arise.
Intel DP 45SG
corsair ddr3 2gb
ati radeon hd 4670
The Core2Quad series is outdated & there will be no more upgrades you could do in the future, with regards to new processors. So I strongly recommend you don't get this.
AMD Phenom II X6 1055T
corsair ddr3 2gb
ati fire pro v3850
I would say this is the best configuration for you, since the software you used is multithreaded, ie, it would reap the benefits of having 6 processing cores. Also this would be more future proof than the other two systems, since the platform would be compatible with new AMD processors in the future.