in WY they call their odds reports, demand Index's. Go to the btm of the "hunting" page, download 2010 and 2011 demand indexes for BOTH the NR draw, regular and special. Also the random and pref point indexes.
Take a highlighter and mark the hunts in the RANDOM draw that had fewer applicants than remaining tags, you will then know which units can be drawn as a 2nd choice and may actually have left over tags. Do the same for the "special" draw (expensive draw).
When done you will know which cheap draw hunts should be available as well as those hunts that should be available in the "special" draw. Generally, there are higher quality hunts available for 2nd choice in the special draw because it costs more to apply.
If it were me, I would gain points and draw 2nd choice hunts while figuring out where I wanted to burn points.
You can also buy "left over" tags in July but I would research those units and fine ones with HMA or walk in access.