I was offered a place at De Montfort (Adult Nursing PgDip) starting in January, phoned them up to ask if there was a list I could be put on in case any September starts dropped out and had a phone call the other week offering me a September start instead.
As others have said, there is no difference between a September or Jan/Mar intake, I was just keen to start the course as soon as possible so that I haven't 'gone off the boil' too much after finishing at college.