Yes, I understand that you are using the gold edition of the SMPS.
I want to make 2 points
1.) Efficiency.
2.) Ripple Voltage.
First I couldn't find a 600w VIP Gold SMPS for Rs. 1800, If you have bought at that price thats cool. It retails for around Rs. 2800.
I am not able to find a clear review for VIP gold SMPS and I believe the Efficiency will not be more than 70%.
In Corsair cx400 which is a 80+ certified you can directly save around 10 to 15 percentage in total power consumption.
Ripple Voltage, here it becomes a bit tricky as I couldn't find a good review of VIP SMPS, I couldn't much complain about it.
But with corsair CX400 you can get better quality power to your config, which in turns make sure you get good lifetime from the components inside.
I have used a generic iball 400w smps with my E4400 for more than two and a half years without any problem, that doesn't mean it is a good power supply.
And coming to the part of cabinet the problem I often find was not able to connect portable harddisk in front USB port and the problem with power button.
The cooler master elite series were not a great cabinet but it can surely take care of the annoying above problems with good cooling solutions.
yes, I believe I am talking about cabinet without smps.
with the above points I made my suggestions clear. If I were you at that point I would have bought a corsair VX 450 or 550 as Smps with a room for decent graphics card in future upgrade and a NZXT Gamma for a cabinet.