If you are not overclocking, and you have a reliable (can usually tell by brand; eg antech, corsair, xfx) PSU, then you should be fine.
If you are overclocking or your PSU was just a freebie that you got with your case, then I would condier upgrading
Hope this answered your question,
edit* I missed the link on your PSU. And yes, that PSU is fine.