Can my power suppl handle a 8800 gt?

ihave a 400w power supply from mercury...i purchased it 14 months ago....right now i have my motherboard an 80 gb hard disk and a sony dvd writer connected to it....there is one extra power connector.....i checked the faq but couldnt make much out of it....i wanna put an 8800 gt....my question is first of all can my present psu handle it???i also wanted to know if u plug this connector directly to the card?wat i meant was tat are the power connectors to the hard disk n card similar???plz assume that i have only superficial knowldege of power supplies(sadly)....my rig is ....
athlon x2 4400+,asus m2n-mx-se...2 gb ddr2-667 transcend ram,80 gb sata hdd

That's cutting it too close. Get a better one.

And stay away from cheap brands like Rosewill.

hey..can u giv e me some idea on the cash ill have to pay for gettin those said psu,s.....im thinkin of a 500 or 550w supply.....

$100 is a good balance right now. Remember it's the basis of your whole system. A PC does run on electricity, so you have to start there. Spend $50 on a PSU, and spend $50 more on the GPU. You get a more demanding GPU and less stable power to run it. The beginning of problems........

This is written by the people with Buttloads more experiance than 95% of us.... Heed it or be smitten!

http://www.xtremesystems.org/forum [...] p?t=108088

This one gets recommened alot and for good reasons too,

http://www.buy.com/prod/corsair-vx [...] 66485.html

I wish I would bought this one instead of the Earthwatts EA380 I purchased about a month ago. The EA380 was only 20 bucks thou on sale with a rebate.