Ok ,I saw this information at Kotaku taken from Germany with data about monthly sales and the total userbase of the plattforms .
Here is the link and then I will post the information
http://kotaku.com/gaming/germany-hearts-nintendo/total-german-hardware-sales-291090.php
Ok ,the monthly sales for May ,June and July for the 3 plattforms have been
X360 ,May 8000 ,June 5000 ,July 5000 units .
Playstation 3 ,May 13 000 units ,June 8 000 units ,July 8 000 units .
Wii ,there isnt information for May and June but for July we have 26 000 units sold ,far outselling the PS3 by 3-1 and even more the 360 with more of a 5-1 ratio .
Then the total userbase
X360 ,281 000 units .
Wii ,291 000 units .
PS3 ,99 500 units .
Thats until end of july .Now if we added the august numbers and those remained more or less in the same tone we could be in some 286 000 for the 360 ,315 000 for the Wii and 108 000 units for the PS3 ,maybe more the later if the Starter Pack had some effect there .
Just to compare to vgchartz figures
Wii ,339 507 units .
X360 ,309 000 units .
PS3 ,108 000 units .
So lets say vgchartz is about spot on with the PS3 (maybe undertracking it a bit if the Starter Pack had any effect ) ,and it overtracks somewhat the two other plattforms although not by much ..some 24 000 units each ......both between the 10% margin of error the page considers as acceptable .