Card Recommendation for Triple Head

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http://www.linuxquestions.org – I have a GeForce 8400 GS card and I run two monitors. I use Xinerama (don't recall now why but I think XrandR didn't work for me) and nvidia. I would like three monitors now and I see here https://bbs.archlinux.org/viewtopic.php?pid=831783 (and other posts) that Xinerama can do this. My onboard video is disabled by the mobo if I use a video card (as per http://h10025.www1.hp.com/ewfrf/wc/d...roduct=3659700 ) so it seems I need a new video card. Should I get another GeForce 8400 GS for $40 from Amazon? I suppose the only other idea would be to get a 3-head card but those seem a lot more expe (HowTos)