What kind of PSU do I need for this rig?

A 500W power supply. Antec, Thermaltake, cooler master, OCZ, all of this are very good brands. And finally, is better if you buy the PSU with PFC active.

Just 500W? I figured i'd needed more for this.

I currently have a LC Power LC6550 V2.2 - 550W ( http://www.lc-power.com/htm/products_detail.php?lang=2&... ).

You think this one is good enough?

500w PSU would put you down to very few watts for future upgrades, not to mention be pushed probably higher than it's efficiency %. Also you don't want to push your PSU to anything over it's efficiency %. So I would recommend a 650w-750w~ PSU for your setup if you want it to be safe/last you a WHILE (even for your next setup).

People often underestimate the need for a good quality power supply with ample wattage room. For example my setup is running under around 350w with full load, my PSU is 400w... I can expect it to last me... 6 months before it dies, however I will probably replace it very soon (next month maybe)....

What number of HDD do you have? the case? DVD drives? what number of fans?

http://www.thermaltake.outervision.com/Power

The link is my system configuration, try with yours.

2 HDDs, 1 DVD-RW and not much else. I don't use any of those LEDs and stuff for the case although I might use some fans.

Thanks for the link, gonna try it out.

Ok, with the configuration that you said, the site has given me 303W. So, i think that the 500W PSU is more that enough, or for a future update, buy some 650W PSU.

And the PSU that you have, i think that isn't too good...

Good luck...

If you know you will not CrossFire, a Corsair 550VX will work very nicely. If you are considering running two video cards, I'd get a Corsair 750TX - plenty of power and it has the necessary cables to power the video card.

My second choice would be Antecs in the same power class.

get a googilian watt psu or what jsc said

I would say a solid 500-600W PSU would be good. I am talking about a newer model that has a good amp rating on the 12v rails. 30A+ or so. That should do you well. If you plan on a 2nd card maybe a 750w. I have a PC Power and Cooling 750w and I like it alot. I can throw a 2nd card in there if I want an and have 60A on a single rail.

Just remember there are 500W PSU's and there are 500W PSU's.. The power supply you listed above, what are the specs on it?

Here are the specs:

+3,3V: 35A
+5V: 40A
+12V1: 17A
+12V2: 19A

Not good? :S

Keep in mind I don't plan on upgrading this for a long time on any parts and i'm looking to spend the least money as possible.

corsair 550 watt
+3.3V@30A
,+5V@20A,
+12V@41A,
+5VSB@3A

It's not great. But if you don't intend to OC, it would be fine.