PSU wattage needed

I'm going to buy a computer but the only thing left is the power suply and I don't know much about this so I wanted to ask how many Watts power suply I need for these components
2 7200 rpm 3.0gb/s sata hard drives
Motherboard Asus p7p55 lx
Ram ddr3 1600 mhz (two sticks)
1 DVD-RW Sata
Asus gts 450
Case cooler master gladiator 600
I'm not doing SLI

I was plammimg on buying betwen these two psu's

Thanks in advance

EDIT: GPU added
8 answers Last reply Best Answer
More about wattage needed
  1. buy neither.. get something from a good brand to protect your investment.

    seasonic, corsair, pc power and cooling, enermax.. etc
  2. Best answer
    First of all, it is hard to recommend wattage without knowing what GPU you will be using.
    Second of all, both of those PSUs are overrated crap. A modern PSU has full range active PFC (no little voltage switch), and 80+ certification. Antec, Seasonic, Corsair, Enermax, and XFX are among the better brands.
    Once you know what GPU you'll be using, go here: for an estimate of PSU size. I'd add 50W-100W just for a little more headroom, but if you choose a quality model, you'll be okay.
  3. Crap! Missed the GPU, I edited the first post.

    Well there's no much to chose here (Panama), plus there's only one hardware store here.
    Here's the full list of their stock
    Disponible (green): in stock
    Disponibilidad baja (yellow): low stock
    Por pedid (orange): sold out

    Also right now I can only afford ~$100 for the PSU, maybe you guys can recommend me the best of the worst ones. :sarcastic:

    Again, thank you :)
  4. In that price range, they all look pretty dismal. Perhaps you can find an online vendor who will ship to Panama. Will ZipZoomFly or TigerDirect?
  5. I would choose this one: as at least it has Active PFC, so its design isn't too ancient. The stated wattage is higher than you need, but adds a margin of safety.
  6. I guess I'm going with the one you say, jtt283.
    Thanks for helping
  7. Best answer selected by poro.
  8. Thanks; have fun with your build.
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