@Noobie, it`s hard to say how much will PS3 sell in first half of 2010, since there is still unknown when most 2010 games will be released.
But i know, that in 2008 after 80GB GT5P bundle release sales dropped to around 20k level in November.
And this year, PS3 is holding stable at 30k+ levels.
That`s why i think PS3 sales will stabilize at 30k+ for most of time during 2010.
2010 first part? I think ps3 will do 1M+.