Check out the Da-lite threads. I have owned the regular white and now have the high power. I have the pull down, type B. Both are well within your price range and will be a step up. (I started out with window backing material and it is surprising just how well it works.)
For description of the types of screens I recommend looking at Projectorcentral.com if you haven't already.
For description of the types of screens I recommend looking at Projectorcentral.com if you haven't already.