What can I safely add with this PSU?

[Mrobbo]

Hi guys, new poster here.

I've just purchased the "Titan Accelerator" http://www.overclockers.co.uk/showproduct.php?prodid=FS-007-OE and very nice it is too. I'm still getting used to it being new to Vista 64 and all and I thought I'd register here to hopefully both share my experience and pick your brains in turn.

Anyway, my question.

As you can see by the spec in the link provided I have a 500W PSU and I'm running (cut&paste):

- Intel Core 2 Quad Pro Q6600 "Energy Efficient SLACR 95W Edition" 2.40GHz (1066FSB) Overclocked to 3.00GHz!
- Asus P5Q Intel P45 (Socket 775) PCI-Express DDR2 Motherboard
- ATI Radeon HD 4850 512MB GDDR3 TV-Out/Dual DVI/HDMI PCI-Express
- Corsair 4GB DDR2 XMS2 PC2-6400C5 TwinX
- Arctic Cooling Freezer 7 Pro CPU Cooler
- Seagate Barracuda 7200.11 500GB SATA-II 32MB Cache
- LG GGC-H20L Blu-Ray Reader & HD-DVD ROM Serial ATA Drive
- OCZ StealthXStream 500w Silent ATX2 Power Supply

I was wondering how many drives I could add to the set up without compromising the power supply? I was thinking maybe of another 500GB Seagate and possibly an Audigy 2 sound card and a faster DVD writer from my old system.

What do you think? Could I add all 3 or maybe just the extra Hard Drive (since this is the only addition I feel is essential)?

 

[Mrobbo]

Ah brilliant, just what I wanted to hear.

Still I'll add them gently just to make sure, starting with the hard drive.

Thanks for your help, and the welcome.