I agree with Glenn that it does help to listen to a lot of recordings (great list, BTW). Hopefully your local library or music store is closer than 200 miles; I'd go and check out recordings and/or videos/DVDs there. If not, there's always really good sound clips on the Internet at many of the websites of the major orchestras listed, as they usually have sample clips that accompany the works they will be performing or have already performed (of the ones not already mentioned, San Francisco Symphony <
http://www.sfsymphony.org> also has a great website with examples of these clips). I found that to be helpful if I'm not familiar with some of the pieces. Hope this helps.
Liz