Looking for new power supply.

Well here I am, just wanting some advice on getting a new power supply. Right now I'm not running that powerful of a machine it's just more of something to get ready for my upgrade. Right now I have a 500W power supply...it was pretty cheap so I'm wanting to get a new one because I think this cheap one isn't doing the job for me.
Here's the two that I'm thinking of getting at the moment:

Corsair:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005

Antec:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371010

Any advice? Thoughts? Right now I am running 1GB RAM, 8800GTS 320MB, P4 3.0Ghz, 1 SATA HD, and 2 IDE burners. I plan on upgrading to a Q6600, 4GB RAM, 9800 series more than likely and add in another HD and probably new burners. Thanks for any help in advance.

 

I'm using the exact same Corsair one right now, almost silent, and good power.

 

I just completed 2 quad core builds (Q6600) for two home machines and used this unit;

http://www.newegg.com/Product/Product.aspx?Item=N82E16817703005

610W continuous at 40C - 49 amps on the single +12v rail. $80 after rebate.

If you more into gaming and need a little more power this is a great unit.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817703009

750W continuous at 40C - 60 amps on the single +12v rail. $120 after rebate.

Both have 5 year limited warranties

 

Thanks for the suggestions guys. I did end up buying the Corsair power supply that I listed. Hope it arrives here soon. Getting sick of my cheap power supply