Check out the below links:
A few websites of interest for possible tax credits, planning, etc.
Home Renovation Tax Credit:
http://www.cra-arc.gc.ca/gncy/bdgt/2009/fqhmrnvtn-eng.html
First Time Home Buyers Tax Credit:
http://www.cra-arc.gc.ca/gncy/bdgt/2009/fqhbtc-eng.html
Home Buyers Plan:
http://www.cra-arc.gc.ca/gncy/bdgt/2009/fqhmbyrspln-eng.html