The HBP (Home Buyer's Plan) is for people with disabilities. As of January 27th, 2009 the limit has been increased from the previous $20,000 to $25,000 that you may withdraw from your RRSP's without penalty. These monies will be to put towards the purchase of your home or the construction of a new home.
These monies must be withdrawn within 30 days of taking possession of your home and are to be repaid over an extended period to your RRSP account. For the full info, I will refer you to the HBP on the government of Canada website.