you'll need one that has all the plugs you need, so it depends on your pc.
Check your mainboard to see whether it has a 20 pin or 24 pin connector, and also if it requires any additional 4 pin or 8 pin 12v lines.
If your graphics card requires its own power plug, make sure it's on the psu you're going to get.
Also, if you have any SATA drives, you'll probably want some SATA power plugs on it too.
In short, make sure all plugs that were in use on the current psu are present on the new one.
edit: yay 500 posts
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