Will the video card work in my PC?

your PSU does not have enough amps for the 8800GTS 512 or 9800GTX+

you can run a 9800GT or 9600GT on it. I have run both on that exact same power supply. Just use the adapter that comes with the cards for the attached power cable.

What size power supply do I need? I want to go bigger but Im not sure. Dell said the case is a Mini tower? Will a standard PSU fit in it??

I thought you where not allowed to upgrade the PSU?

Either way, any just about any ATX power supply will fit in your case. Your motherboard is a BTX format so avoid any PSU where people state it has short cables.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

would that work and be good?

Its cheap but got good reviews.

i would go with
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

ick, stay away from apevia

Why?

I may get a PC power one off Dell, 500 watt for $65.

Will the 8800 or 9800 fit in my case?!

efficiency of that PSU seems bad.

Apevia makes decent cases...PSUs, not so much...

At my local microcenter, OCZ seems to be having a sale for their PSUs.
Quality 500-600 watts for under $80...the prices might be comparable online.

the 9800 / 8800 GT (its the exact same card) will fit in your case and you wont need to upgrade your power supply for it.

im pretty sure youd be able to get a quality Antec power supply for cheaper than the corsair psu proposed...

The PSU in the case is only 300 watts, it wont run a 8800 GTS will it? Everywhere I look, people said I'd need a bigger PSU.

Im also looking at a 4850 512mb.

the 4850 will definitely require you to upgrade your psu...the best cards that wouldnt need a psu upgrade would be the hd4770, the hd4670, and the lower power version of the 9600gt

...i think you are confused, you asked if the 8800 / 9800 Gt would fit in your case, now you are back to the 8800 GTS.

And yes, you would need a bigger PSU for that card.

He can run the 9600GT, low power or normal with no issues.

Can you help me out here , i have the 9800 GT from BFG , the Eco-Intelligence edition and it uses 30% less power than the regular ones. I see that you have the regular one running on a 300 watt PSU. So how is it running so far , does your computer crash when playing demanding games .... ?

Do you think I'll be able to run mine on my 300W PSU. So far everything on my PC runs perfect , games are stable and there are no crashes , what do you think ?