The UA Libraries offers software called RefWorks that can help you organize and cite the sources in your bibliography in Chicago. I especially recommend RefWorks to those working on advanced projects like seminar papers and dissertations. Watch these tutorials to learn more about using RefWorks.
To Quote or Not To Quote?
In general you want to limit quotations to "gems"--very well-written sentences and phrases from primary sources. Try to paraphrase as much as possible. Here are some more tips on quoting and paraphrasing.