After failing to make any significant additions to his squad since replacing Sir Alex Ferguson at the beginning of July, Moyes will finally get his chequebook out on deadline day.
Everton midfielder Marouane Fellaini seems certain to be a United player by 11pm, with the potential for Leighton Baines to make the same switch from Goodison Park to Old Trafford.
And there could be more too, with Athletic Bilbao's Anders Herrera still on Moyes' radar despite officials from the Basque outfit insisting following Sunday's defeat by Real Madrid that the midfielder was going nowhere.
Moyes was giving little away following Sunday's game, when United failed to score in successive Premier League matches for the first time since May 2007.
"There's a bit of all sorts of things going on," said Moyes.
"Maybe in the next how many hours we will get a chance, but I can't give you a heads-up.
"It's not too long before we will know."
Reflecting on the game, Moyes' main grumble centred around a penalty claim Danny Welbeck had against Iago Aspas in the second half which referee Andre Marriner turned down.
"I think it is a penalty," said Moyes. "He kicks him on the back of the leg.