The Ottawa-Gatineau branch of CAMMAC (Canadian Amateur Musicians - Musiciens amateurs du Canada) offers various workshops and readings during the year as well as Come Sing Messiah in December.
The Royal Free Music Society is a UK choir that has published rehearsal midi files for many common choral scores, including the entire 100 Carols for Choirs. You may find something useful there.
The Leading Note is a music store located in downtown Ottawa
focusing primarily on classical print music. In addition to stocking a large
amount of the standard repertoire, they specialize in ordering music in very
quickly (everything from more obscure repertoire to larger school, choral and
orchestral orders). And they offer a very prompt and economical mail-out
service.
ChoralNet is primarily aimed at choir directors but has a resource page with some links that may be interesting to singers.
CyberBass is another website with midi files of major choral works. When you click on the title of the work, it leads you to another page that has the work broken down into parts, with controls that allow you to adjust playback speed.
