GS7600 not enough power

Hi all
First off what a great forum. I have been browsing for a while and decided to join. However I do have a problem with my Graphics card. Its a Inno3d 7600gs and i get the message on bootup that its not getting enough power. I am looking to buy a better PSU and have found, through reading posts on here, 2 psu's that have good reviews. 1st is 480w Enermax Coolergiant (eg485ax-vhb) £54.00 and the other is 580w HiperPower Type r Modular £64.50..
Any rccomendations as to which one will be the best for me.
My system is:
AMD 3000+ 2.17GHz
768 MB Ram
2 Ide HDs
1 Pioneer 106 DVD Writer
1 DVD Rom
1 7600gs (AGp)
Any help advice appreciated
Cheers all
Vance

Between those two, I would probably get Hyper one. I know many people here use that PSU and I have never seen them complain so that must be a good sign. I also heard seasonic PSU are of very good quality.
Welcome to the forums.

Thanks for the reply.
I was leaning towards that one after reading reviews about it...plus its a nice colour !
Cheers
Vance

Yes, looks quite good and also it's a modular type so cable management is easier=more free space inside case=better air flow=cooler case= more overclock headroom:p