VIZPARK recently released Winter Scene, a complete winter scene made by Igor Ilic which includes realistic trees, hdri etc .. from the products offered by the site and compatible with 3dsmax 2012 and vray 2.4 (and later).
 
The scene is included from January 1 in every bundle purchased, but is also distributed individually "to the end of 2014" and for the moment it is still free, so if you are interested just take it!wink