Video Graphics card help

[Vesuveus]

Hi all,

I am really struggling to find a graphics card upgrade. I am just so limited in my knowledge about video cards and their specs that I don't want to make an expensive mistake.

I run a Vista machine and am looking for a graphics card that will have an hdmi output and that can display mxo in all its glory. Budget is around $200. I will buy used, but wouldnt mind spending a little extra for something new.

Anyone have any suggestions? Anyone willing to spell out graphics card specs and how they pertain to running software, specifically mxo?

Any help is appreciated.