Here is Canadian software chart for April 2008 according to NPD:
April 2008:
1 (-) 360 - Grand Theft Auto IV 2 (-) WII - Mario Kart Wii w/ Wheel 3 (-) PS3 - Grand Theft Auto IV 4 (-) PS3 - Grand Turismo 5: Prologue 5 (1) WII - Super Smash Bros. Brawl 6 (3) WII - Wii Play w/ Remote 7 (-) 360 - Grand Theft Auto IV: Special Edition 8 (-) PS3 - Grand Theft Auto IV: Special Edition 9 (10) WII - Guitar Hero III: Legends of Rock w/ Guitar 10 (6) PS2 - Rock Band Special Edition Bundle 11 (5) 360 - Rock Band Special Edition Bundle 12 (13) PSP - Crisis Core: Final Fantasy VII 13 (2) 360 - Tom Clancy's Rainbow Six: Vegas 2 14 (-) WII - Dance Dance Revolution: Hottest Party Bundle 15 (9) 360 - Guitar Hero III: Legends of Rock w/ Guitar 16 (17) DS - New Super Mario Bros. 17 (7) PSP - God of War: Chains of Olympus 18 (-) DS - Pokemon Mystery Dungeon: Explorers of Darkness 19 (18) DS - Mario Party DS 20 (-) DS - Pokemon Mystery Dungeon: Explorers of Time
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April 2008:
1 (-) 360 - Grand Theft Auto IV
2 (-) WII - Mario Kart Wii w/ Wheel
3 (-) PS3 - Grand Theft Auto IV
4 (-) PS3 - Grand Turismo 5: Prologue
5 (1) WII - Super Smash Bros. Brawl
6 (3) WII - Wii Play w/ Remote
7 (-) 360 - Grand Theft Auto IV: Special Edition
8 (-) PS3 - Grand Theft Auto IV: Special Edition
9 (10) WII - Guitar Hero III: Legends of Rock w/ Guitar
10 (6) PS2 - Rock Band Special Edition Bundle
11 (5) 360 - Rock Band Special Edition Bundle
12 (13) PSP - Crisis Core: Final Fantasy VII
13 (2) 360 - Tom Clancy's Rainbow Six: Vegas 2
14 (-) WII - Dance Dance Revolution: Hottest Party Bundle
15 (9) 360 - Guitar Hero III: Legends of Rock w/ Guitar
16 (17) DS - New Super Mario Bros.
17 (7) PSP - God of War: Chains of Olympus
18 (-) DS - Pokemon Mystery Dungeon: Explorers of Darkness
19 (18) DS - Mario Party DS
20 (-) DS - Pokemon Mystery Dungeon: Explorers of Time
Grand Theft Auto IV sales (combined) = 270k