Im getting a pc made up atm , and im having a very bad feeling the psu im getting wont run with two graphics cards.

will a "520watt psu" handle my below setup ? and is Task a known brand ?

GIGABYTE GA-K8N PRO-SLI Socket 939 Motherboard
AMD Athlon 64 X2 Dual-Core 4400+ 2.2GHz Socket 939
Corsair TWINX2048-3200PRO 2x1024Mb DDR400 ProSeries
MSI NX6800Ultra-T2D256E PCI Express - 256MB
MSI NX6800Ultra-T2D256E PCI Express - 256MB
Creative Sound Blaster Audigy 2 ZS Platinum
Task TK-952TX-JB 520W ATX 2.0 with single 120mm Blue LED fan
Philips 22" 202P40 Real Flat CRT Monitor
LG Electronics DVD-ROM Drive 16x
Thermaltake Tsunami with window (black or silver)- no PSU

Go here http://www.jscustompcs.com/power_supply/
Add 30% for reserve and future expansion. That will give you the ballpark figure.

Task seems to be mainly available in AU and NZ. Never heard of them in Europe.
The specs of your selection are not great, they are adequate, no more.
Try the likes of Enermax, Antec, Fortron, these come highly recommended everywhere.

thankyou for the link , it roughly explained how much power each bit of hardware uses , not as much as i thought . I did however stick with the Task psu atm , as ive spent enough as it is .

As for my computer :

"The specs of your selection are not great, they are adequate, no more."

Your totally right ! im not sure why i didnt think of that before i bought it. That system above is one of the best i could get in newzealand atm , keep in mind nothing i bought above is manufactured/made in newzealand nor the same price tag as the likes or europe or the usa , we arent as lucky as some countries out there ..
I got every component the cheapest i could in newzealand and im happy with it , it will be an excellent system for 3d level design/3d animation which is what i got it for , nothing more nothing less

total price : $4400

You misinterpreted my message "The specs of your selection are not great, they are adequate, no more."
That was meant ONLY for the powersupply!

The rest is a bomb, and would make everyone drool and look green with envy!!

Im sorry i did miss read that a little , i didnt think it was the best system i could of got through .. but as i said nothings cheap in newzealand with computers so it was very hard for me to buy the best of everything sadly enough . It originally was a gaming system , but i luckily got a job in 3d animation so this system is going to be perfect for doing just that (especially the 22'' screen).

With the psu i read that its one of the most important parts of your pc, so you could see i was concerned when it came to having enough power to run those higher end components . heres my final specs here .

GIGABYTE GA-K8N PRO-SLI Socket 939 Motherboard
AMD Athlon 64 X2 Dual-Core 4400+ 2.2GHz Socket 939
Corsair TWINX2048-3200PRO 2x1024Mb DDR400 ProSeries
2 x MSI NX6800Ultra-T2D256E PCI Express - 256MB
Creative Sound Blaster Audigy 2 ZS Platinum
Task TK-952TX-JB 520W ATX 2.0 with single 120mm Blue LED fan
Philips 22" 202P40 Real Flat CRT Monitor
LG Electronics DVD-ROM Drive 16x
Thermaltake Tsunami with window -black (case)
Windows xp pro sp2
seagate 120gig sata 7200rpm , 8mb cache
Creative Gigaworks S750 THX 7.1 speakers (just for some fun)