Hey Wild1, just went through your whole thread, you have done well mate considering the harsh temps in both ways.. You seem to have your temps dialed in now..
But just in case the winter goes very cold, you could use 1 or 2 cfl in 2700k during flowering (warm white) to keep the temps up try and find porcelain lamp holders if you can (safer IMO) PM me if you need some links, alternatively you can find electric blanket for a tenner at Argos stick it under your pots on a low setting to keep the general warmth up.. :gthumb:
Would you be able to snap some flicks under natural light, it's quiet hard to judge the advancement of your plants if we cant see the colors of the leaves and that...

But it looks like you gonna get a bountiful harvest!
Happy growing mate..