I just recently got into the hobby and picked up an old Optiplex360 for free from a friend. It works fine as is but my intentions are to upgrade it as best I can with the original mobo, and use it as a home enterainment hub. Basically store a ton of movies on it. My biggest upgrade will probably be a graphics card with an HDMI port. That being said, any suggestions out there on a good but not amazing graphics card w/ HDMI port?