Hi there, I have a XPS 720 tower since 2008 and I would like to replace my NVIDIA GTX 8800 video card. I'm running Windows 10 and that's the only change I have done since I bought it. Would you recommend a good video card to replace the old one without creating any comflit within the unit. Would you also have any advice on anything I should be aware of before I go ahead and change it. Thank you in advance.