I would rather not have to sell my MacPro, but for some financial reasons, I may have to. The specs of the machine are in my sig, but if I can get these add ons to work in Windows, I think I can sell my HP HDX instead. Anyway, I know these cards wont work in OS X, but would they work/ fit if I used them in Windows with Bootcamp? http://www.newegg.com/Product/Product.aspx?Item=N82E16815116036 Since it's only PCI e x1, it won't work will it? Can anyone suggest a tuner that will work inside a 2009 MacPro in Windows? I am not a fan of the elgato, so that option is out. http://www.newegg.com/Product/Product.aspx?Item=N82E16829132012 If this sound card won't work can you suggest another one? My situation is to get rid of the HP and use my MP as my HTPC/ Work PC, or to sell the MP and my 24" ACD for a new iMac when they come out and then build my own HTPC since I have a New Egg preferred account and could put the money off for a little.