Re: Integrated GT2xx solutions?
Nvidia has pretty much stopped chipset development for the moment, so no, nothing newer than ION (GF9400) exists from them.
You best bet will be an AMD chipset so far, as intel and integrated video don't match (or at least the performances wont be there). The HD4200 in the AMD785 chipset is reasonnably fast and probably sufficient for an HTPC. Search google for reviews, many have been done.
As the universe is curved, there cannot be a straight answer...