I don't have all the numbers, but I saw this in another forum.
Top 10 Selling Games for GameCube for February 2003 (Retail Sales $)
Title Publisher Projected $'s Projected Units
1 METROID PRIME Nintendo $2,035,031  68,873
2 MARIO PARTY 4 Nintendo $1,993,635  60,539
3 SUPER SMASH BRO MELEE Nintendo $1,585,663  47,771
4 LORD OF RINGS: TOWERS Electronic Arts $1,518,543  30,600
5 ANIMAL CROSSING Nintendo $1,384,332  27,813
6 SKIES OF ARCADIA LGND Sega $1,274,151  24,881
7 SUPER MARIO SUNSHINE Nintendo $1,176,820  23,866
8 STAR FOX ADVENTURES Nintendo $973,251  29,715
9 RESIDENT EVIL ZERO Capcom $915,378  30,297
10 GODZILLA: DESTRY MELEE Infogrames $864,918  19,885  
February Hardware Sales
PS2: 484,000 (+8% over January sales)
XBOX: 197,000 (+20%)
GCN: 164,000 (+103%)
GBA: 282,000 (+6%)
Cumulative Installed Base
PS2: 16,802,000
XBOX: 4,962,000
GCN: 3,828,000
GBA: 12,441,000
The free game deal is working. Nintendo is closing the gap between XBox and GCN. Hopefully, Nintendo's momentum will carry over into March.