If I'm understanding you correctly (please correct me if I'm wrong), you're asking if there's a cheap way to convert a VGA signal into a DVI-D signal for use with the HS10's DVI input. Gefen makes a VGA to DVI-D convertor box, but it costs US$300, and it's the cheapest such solution that I have seen.
http://www.gefen.com/kvm/product.jsp?prod_id=1310
Alternately, you could transcode a VGA signal to component, but such a transcoder would typically cost between US$200-$400.
http://www.gefen.com/kvm/product.jsp?prod_id=1310
Alternately, you could transcode a VGA signal to component, but such a transcoder would typically cost between US$200-$400.