Do you reckon it would help if they were covered before the "proper" frosts came?
If you can give them some protection, ie. greenhouse or cold frame, you could pop them into small pots filled with general purpose compost and then plant them out in spring. As long as we don't get any prolonged severe frosts they should at least start the growth process.
I'm not sure I have that many pots!
I suppose I could go down the half-toilet roll route if you don't think they'd be good in the ground?
I agree with Flighty that they may well be OK in the ground, especially if covered with fleece or something. I wouldn't personally risk it but then I have hundreds of little plant pots :)
Danny, they will be fine
I have planted mine between October and Xmas
There is plenty of time and the weather has been a lot milder than last year
As Flighty has said, you have nothing to lose, but I am sure they will be fine
I have planted onion sets in module trays before now and then transplanted them in the spring - gives them a good head start but I dont see why you cant plant them out if the ground is OK
Thanks for all the comments!