If your budget will stretch that far, go for Drogba up front, from what I hear he is an absolute god.
Bench, I would have:
GK - Van Der Sar
RB - Sagna
CB - IF Samba (look at his defence + heading stats)
LB - Baines
RM (will cover both wings) - Valencia
CM - Anderson (83 pace, best you can get for a cheap price)
ST - Agbonlahor (again, for his 92 pace)
This bench provides you with lots of pace, meaning that when the game is at around 70mins you can make your subs, and because your opposition will be tired, you should just be able to run rings around them
.