Video card for Xen

Can some one recommend a relatively high speed video card that works with Xen? I have an Nvidia 7300 which apparently does not from allI have read on the internet and on the mail list. With the nv driver, it does not support my monitor resolution (1680X1050). Allso needs to be pci express compatible. Also is the intel 950 or any graphics card based on it compatible? Art