The totals for Wii / PS3 in Canada appear to be a little off...
Monthly sales since launch...
Nov + Dec - Wii: 84,000, PS3: 45,000,
Link
Jan - Wii: 34,000, PS3: 6,800,
Link
Feb - Wii: 28,556, PS3: 6,084,
Link
Mar - Wii: ???, PS3: ???, No Link
Apr - Wii: 42,100, PS3: 7,200,
Link
May - Wii: 37,300, PS3: 6,500,
Link
Jun - Wii: 53,000, PS3: 6,500,
Link
Jul - Wii: 36,419, PS3: 15,037,
Link
Totals (Minus March) - Wii: 315,375, PS3: 93,121
Even minus March, the totals in the OP through July are too low. For March, Fuzzy has Wii at 26,500 (
Link) (which follows a drop from Feb -> March in U.S.) so we'll go with that. Looking at PS3 in U.S. for Feb -> March, it was pretty flat (slight rise) so we'll assume the same for Canada and go for 6,100 (the margin for error here is probably 1,000 tops). I'd say both these numbers are close enough.
New totals (w/ March) - Wii: 341,875, PS3: 99,221
You can find 360 numbers (minus Nov / Dec 2005 and March 2007) at all those links as well.