I don't know about starting Gonzalez straight away as, surely like most newly arrived South Americans, he should be started as a sub who comes on in the second half and gradually make the first team after 4-5 appearances as he'd need a bit more time to adjust to the hurly burly and pace of the English game.
I'd expect Pennant and Bellamy to be thrown right into the deep end of things and start straight away.
Reina
Finnan Carra Hyppia Riise
Pennant Momo/Gerrard Alonso Zenden
Gerrard/Fowler
Bellamy
Gerrard would either play behind Bellamy with licence to roam if Momo is in midfield or Gerrard in midfield and Fowler a bit behind Bellamy. I fancy Bellamy to make a real nuiscence of himself to opposition defenders and continue his good scoring record in the EPL, as he had done at weaker clubs in the past.
Rafa would slowly introduce Gonzalez and Aurelio as they get more acclimatised. Crouch would be the "Plan B" player/sub depending on the opposition.