Is this graphics card suitable for my Dell?

Can anyone please advise if this graphics card would be a suitable upgrade for my Girlfriends Dell Inspiron 530. I need to go for a PciE card with no separate power supply cable, as the PSU supplied does not have one.

Sapphire HD 2600 XT 256MB GDDR4 Dual DVI-I TVO PCI-E Graphics Card - Ebuyer

My main concern would be the power consumption. The PSU in the Dell is 300w I belive. Not great.

Its only for playing WoW on so does not need to be terribly powerful, just better than the onboard graphics.

Thanks in advance for you help.

If it doesn't have a separate PCIe connector then the maximum power it can draw is 45w. The 300w PSU should be fine for this card. If you decide you want something better (not that I think you will need it to play WoW) then you can get 2x molex to PCIe adapters.

Might want to conside a gefore 7600gs as for wow you don't need that dx10 malarky, you can get them cheap and it's a low power draw card.