Ok, I figured it wasn't that simple. ...so can I assume that a 9400 would require less power than a 9500? I found another card on Newegg (http://www.newegg.com/Product/Product.aspx?Item=N82E168...) that's a 9400 but it happens to have HDMI out, which I would prefer but not if it ends up using more power or a 9500 is measureable better than a 9400 for video (not gaming). HDMI would be nice but not required.
If you do not get the 9500GT I would opt for the ATI HD4550. It Doesnt have an HDMI port but has the DVI to HDMI adapter. And with an ATI card you get the built on 7.1 Surround sound as well through HDMI.
It comes with a little gray adapter that converts the DVi to HDMI. It also, somehow, passes the audio through the DVI connector to the HDMI connector. I am assuming using unused pins that the DVI output doesn't use.
DVI is video only, but I'm sure there are unused pins that they take advantage of to pass the audio. I have a 4870 and it installs an audio device that I can output to. I haven't tried it yet but was told its pretty snazzy.