Can my 480w psu handle all of this?

[Gundam]

I have a thermaltake 480w psu with the following being powered by it:

-A64 3000
-Radeon 9800 pro
-Radeon 7000
-HDTV tuner card
-SB Audigy 2
-4 hard drives
-1 DVD burner and 1 CD burner

This seems to run fine, but I would like to add 2 more hard drives to my rig. Will my PSU be enough to handle all of this?

 

[dfuze]

I used a program called OverClockulator and using the info you gave and guessing on a few others (ram, usb, ps2, ...) I came out with you needing a power supply of 284w for quality psu, 355 for average psu, and 443 for a bargain psu.

 

[stevty2889]

You'll probably be ok, but thermaltake PSU's tend to have patheticly weak 12v rails..so 4 hard drives may be pushing it..