Will 500Watt Be Sufficient For me?

[MTIH1992]

I have bought the components just need PSU. Will 500W be good enough for these Specs?:

Intel Pentium D 930 3.0Ghz
Radion Saphire 512MB Graphics Card
2 Case Fans
1CPU Fan
1 CD-RW
1 DVD-RW/CD-RW
Internal Card Reader
Front Case 3 LED Lights
2 X SATA Hard Drive 250GB
2 X DDR2 512MB RAM
6 X USB
1 X Firewire
1 X Floppy

If it is please tell me and if not please reccomend a wattage.

I am really greatful, Thanks In advance, Matt

[peanut]

Put it this way, I have

2x 1gb pc3200 ram

Amd athalon 64 processor 3400, 2.46ghz

Radeon 9550 512mb graphics

4 case fans, 2 of which are lighted

1 cpu fan

internal 4 card reader

case lighting

2 hard drives

2 dvd drives

1 fan speed controller

6 usb

1 floppy

and a 400w power supply is plenty for me.

[BillyNoMates]

500w will be fine with room for approximately another 80w with ease. That's over-estimating on what information you have provided so being a tad cautious.

Hope that helps.

[Oneeyedvic]

I have a 3.06 Ghz Pentium IV, I GB Ram, 2 x 160 GB hard drives, 1 DVD & 2 x CD RW, 1 fan, 6 USB, 512 MB graphics card, tv card, DVR card, RAID card.

I run my pc 24 / 7 and it has a 350W power supply (been running just under 2 years)