Well after all the penalties, the Toyotas are P2 and P3 with Trulli and Glock, respectively. Jarno was only 0.072s off of the pole time, so he's a valid contender for a win if he can gain a position in the pits or through passing somehow.
Both Trulli and Glock are fueled similarly to Button in the Brawn. Button said something about the rear of the car gaining weight from the Mercedes powertrain and that there's still some weight to be lost there. So, he is likely also carrying 50 kilos of fuel, maybe even a little less.
Here are the weights:
1. Jenson Button, Brawn GP, 660kg
2. Jarno Trulli, Toyota, 656.5
3. Timo Glock, Toyota, 656.5
4. Nico Rosberg, Williams, 656
5. Mark Webber, Red Bull, 656
6. Robert Kubica, BMW-Sauber, 663
7. Kimi Raikkonen, Ferrari, 662.5
8. Rubens Barrichello, Brawn, 664.5
9. Fernando Alonso, Renault, 680.5
10. Nick Heidfeld, BMW-Sauber, 692
11. Kazuki Nakajima,Williams, 683.4
12. Lewis Hamilton, McLaren, 688
13. Sebastian Vettel, Red Bull, 647
14. Heikki Kovalainen, McLaren, 688.9
15. Sebastien Bourdais, Toro Rosso, 670.5
16. Felipe Massa, Ferrari, 689.5
17. Nelson Piquet, Renault, 681.9
18. Giancarlo Fisichella, Force India, 680.5
19. Adrian Sutil, Force India, 655.5
20. Sebastien Buemi, Toro Rosso, 686.5
The minimum weight is 605 kilos including the driver. So most guys are running a two pit stop strategy with 50 kilos of fuel, but there are others who are fueled quite heavily.