I know combining two types of track is difficult.  That's why one needs a plastic type connector.  Does Bachmann make something that allow these two types to connect.  If not I'll have to replace all of the steel track I bought and change all to brass.  E bay anyone?

Is it possible to connect a few brass tracks to a set up of steel tracks?  My steel track do not make some of the curves I have but the longer brass curves will.  However, the two types of track are not compatible.  Is there a connector or interface piece that will connect the two types or must one replace all of the steel tracks with brass ones?  A very expensive proposition. 
   The reason for this problem is that the steel track is not available in longer lengths.