Power Supply Requirement

[MegaSandBoxGamer]

I'm going to get together my 1st rig and so I'm not sure about the amount of psu power I will require.

Built:

i5 4670K(not gonna overclock) But still will keep a K model as there is no price difference as to a deal.

or

i7 4770K(I can go for this if I save on psu and other components and somehow increase the budget)so let me know the psu requirements for both processor( I will use only 1 BTW)

Case: NZXT H440 and will use only the fans included (4 fans included) but ya I want few expansion later on.

Mobo: Asus z87-a

ram: 1x8 GB DDR3 Corsair Vengeance DDR3 8GB RAM (CMZ8GX3M1A1600C10)(can't go for an dual channel)

gpu: MSI Twin Frozer GTX 770 2GB GDDR5

SSD 120gb evo samsung

HDD 500gb 5400 rpm segate(I have external storage like 4 tb segate so wont invest money in internal due to tight budget)

optical drive (external dvd writer) not possible due to the casee

Cooler: Corsair H100i(only if I save money)

I have calculated in cooler master's website power supply and they showed that I only need 490W (choose i5 for it though) but I asked few of my friends who have build there rig before and they said if I get 600W then later on it will be problem if I add 1 o 2 more fans or hdd....

SO PLS HELP! LET ME KNOW THE AMOUNT I NEED. DONT WANT TO SPENT TOO MUCH OVER IT THOUGH. I wont overclock and if I in future then I will add a new psu and remove the existing.

[Nineshadow]

http://extreme.outervision.com/PSUEngine

460W at 100% (which you will rarely ever reach)

 

So...get a 550-600W Bronze PSU,just like @DEcobra11 said.

[MegaSandBoxGamer]

thanx!    I I think I will go with 600W with Corsair GS600 W is it good? I guess it has 80+ bronze rating. Looks good too. Anyways so I can hook up a i7 4770K too? with h100i? no overclock by the way THANX a ton!

[MegaSandBoxGamer]

oops, anyways so is it ok to go ahead with it? or a 80+ will be better?