Ive got a GT430 which I use to run 2 displays for Sonar. I would like to run a 3rd display, namely my HD TV, so I can stream tv etc to it. Could I use the onboard graphics hdmi output to run this independently at the same time as the others? (if that makes sense) Or will a graphics card and on board graphics not play nicely together? I am clueless on these matters, would appreciate your help.
 
Cheers
 
Bibs

With a Z87 chip, yes you can do that and it is explicitly supported by Intel. Unless your board has something strange in its design, it'll work just fine.

Works great, thanks for taking her time to answer sycraft

Bibs