Confused!!! Need help on Mobo, Case & PSU for my new build? Need help and suggestions

[piyusha]

Hi!

I am planning a new build. I have worked out the following config, but confused on the Cabinet, Power supply and Mother board?

Casing : Antec 300 Gaming Cabinet / NZXT Gamma
SMPS (PSU) : Antec EarthWatts Platinum Series 450W / Antec VP Series 450W (VP450P) / Antec TP-550 Watt /
Seasonic S12II 430 Watts
Processor : Intel Core i5 3570K Processor
Mother Board : Intel® Desktop Board DZ77SL-50K / Intel® Desktop Board DZ77SL-55K / Gigabyte GA-Z77MX-D3H /
ASUS P8H77-V Motherboard
RAM : G.Skill RipjawsX DDR3 8 GB (2 x 4 GB) (F3-12800CL9S-4GBXL)
HDD : 1 x 320 GB Seagate (SATA) + 1 x 1 TB WD (SATA) {Exsiting}
Graphics Card : XFX ATI Radeon HD 5450 1 GB {Existing}
Monitor : Panasonic 24 inches LED Full HD {Existing}
Sound Card : Creative Audigy {Existing}
Speaker : F & D F6000 5.1 Channel {Existing}

Although Antec and Intel are my personal favourites. If i stick to them Which one is better, especially in case of PSU and Cabinet? I am open to suggestions. Plan to upgrade the sound and graphics card later due to budget constraints.
PLZ help. Since budget is an issue, i am giving the approx prces below for the items in question:

POWER SUPPLY UNITS:
Antec EarthWatts Platinum Series 450W 5900.00
Antec VP Series 450W Power Supply (VP450P) 3000.00
Antec TP-550 Watt Continuous Power Supply 5000.00
Seasonic S12II 430 Watts PSU 3500.00

MOTHER BOARDS:
Intel® Desktop Board DZ77SL-50K 8500.00
Intel® Desktop Board DZ77SL-55K 12500.00
Gigabyte GA-Z77MX-D3H 9900.00
ASUS P8H77-V Motherboard 10500.00

CABINETS:
Antec 300 Gaming Cabinet 3500.00
NZXT Gamma 2600.00

I have gone thru reviews and all of them seem good, for the price point. But still wanna go for the best VFM. I had almost decided on The Intel® Desktop Board DZ77SL-50K mobo, but some freinds suggested these other options. Same goes for Casing I was almost decided on Antec 300 Gaming Cabinet.
I wanna use the the PC for gaming and editing home made videos and photos shot using my DSLR and also for watching HD movies. Games like NFS-MW, Call of duty, etc... I live in Gurgaon (Delhi NCR), India. All the above mentioned prices are in indian Rupees.
I am open to suggestions for other brands as well, if they make a strong case.

 

[claptonman]

If you plan to upgrade the graphics card, like you said, the 550w Antec is the best choice.

The gigabyte has the best features for a lower cost.

And the Gamma is a much better case than the antec 300, unless its the 300 V2.

 

[swchoi89]

Here in Canada and U.S.A, OCZ PSU uits with 600W to 700W only sell less than $80. On google converter, that 5000 rupee is about 93$ in dollar? OCZ has been very good to me the past 4 years of my building 'experience'.

Your GPU is 5450, which may not suit your gaming needs, performance-wise. Can you spend a little more on that part?