You need to have the funds:
http://www.cic.gc.ca/english/immigrate/skilled/arriving.asp If you don't have the funds, they can deny your PR since you fail to fulfill the requirements. The only reason they even let you come to Canada without a job first is because you proved to them when you applied that you had enough money to support yourself while you look for a job in Canada.
You don't have to have it cash. If you can get a bank statement in your name saying you have another 5K in there, even if it's borrowed money put in there by a friend for one day, that will do it.