Calum, on loan from Tottenham for an initial three months, says:
"I just moved in to my new place on Tuesday so hopefully I can get really settled and focus on my football - I am at Waltham Abbey which is just between Tottenham and West Ham!
"I have to make it as easy as possible for my family to settle in because it is important that they are happy as well as me.
"If that is the case the rest will take care of itself and I am just wanting to do well for West Ham - that is the main thing.
"That is the way I am trying to work it; hopefully I will stay here for the season and we can get in the playoffs or get direct promotion."
Calum is looking forward to playing at Upton Park again and adds:
"I think there is pressure on every game but we have good players here that thrive on that - and if we can win on Saturday it will be very nice."
Paul Ince returns to Upton Park but Calum says:
"We won't worry too much about that; we have been on the training pitch working hard and hopefully we will get the right result on Saturday."
Calum is hoping help keep a clean sheet once more in the absence of Malky Mackay, who has a calf problem.
That means he is likely to partner Tomas Repka at the heart of the defence again.
Looking back on the Derby game, he says:
"Their goal was from a corner which came off Tomas Repka's head and their guy just stuck it away after it landed at him.
"We responded quickly but the ball just wouldn't go into the back of the net after that.
"I think you can take a lot from the game though because you would rather be creating the chances than not.
"There is a lot to build on from that performance - and they are a tough team at home, as Wigan found out.
"Results went our way midweek but we didn't manage to capitalise on Wednesday - though I would have taken a point."
As for the stamping accusation aimed at Bobby Zamora, Calum says:
"I don't think they had had much to cheer so that incident probably gave them something to have a little moan about - but there was nothing in it really."