http://www.netfile.gc.ca/sftwr-eng.html
Windows:
eTaxCanada, FutureTax 2010, GenuTax Standard, H & R Block At Home, myTaxExpress, StudioTax 2010, TaxFreeway, Taxtron, TurboTax (previously QuickTax), UDoTaxes 2010, UFile
Web applications: (for Windows and Macintosh)
AceTax Online...