Dido and Aeneas: recommended recordings
There are a lot of recordings out there so it can be quite daunting when you are searching, but several do spring to mind:
René Jacobs (conducter), choir of Clare College, Cambridge and the Orchestra of the Age of Enlightenment. (see picture). This recording has a great string sound and some good soloists. It is, however, quite expensive and hard to obtain.
Christopher Hogwood and the Academy of Ancient Music (downloadable from itunes) is reasonably priced. The voices have a fair amount of vibrato which you needn't have!
This CD has fabulous soloists such as Ian Bostridge and Felicity Palmer but again, a bit more expensive.
Don't forget that these are recorded by artists who are much older than you and have larger voices with big vibrato! I don't expect you to sing in the same way, especially in a nice light Baroque opera. However, professional recordings are great for comparing interpretations!