Hasni check DD cashed or not at least after 2 weeks of application received. If you see the May 2011 applicant thread, we are starting to get DD / CC charged updates, some got it within 10 days, some around 16 Days +
If it has been cashed, it means that your Application sets are complete, IELTS is included, CAP has been not reached, Fee is processed...then after Fee is cashed they will scrutinize the Package completely. This is my understanding, may be someone with more experience can give more details.
Check here for May 2011 Applicants details;
http://www.canadavisa.com/canada-immigration-discussion-board/may-2011-application-process-and-timeline-t71221.255.html
See this a brief overview (Summary, to the best of my knowledge)...
http://www.canadavisa.com/canada-immigration-discussion-board/contents-of-per-t73620.0.html;msg813165#msg813165