Both nVidia and ATi (AMD these days) have now released their new midrange cards. Links are to Anandtech reviews.
Something odd is going on. First, at the end of October, nVidia release the 8800 GT. A new midrange card to repace the decidedly lackluster 8600 GTS, made on a smaller process to reduce heat production and make it cheaper to produce.
The odd thing is, its too good.