Here is a page on my web site with the set up I use for germinating.
http://knapps-fresh-vegies.netfirms....enhouse06.html
For germinating peppers HEAT is everything.
The only thing I've changed about this the last few years is that I don't drape the plastic all the way to the floor any more. I leave it open a bit at least on 1 of the sides so there is a bit of air circulation. It helps keep down the damp off problem if there are too many plants in too small a spot that's too humid.
Something else I do for really hard to germinate peppers, like pequins or "bird peppers", is before I put them in the pot, I "scarify" the seeds a bit. I use 2 sheets of fine grade sandpaper and rub the seeds between them for a bit. Not too hard tho. Just enough to scratch them up a bit.
Something that I don't do but many pepper enthusiasts do is to soak the seed overnite in "salt peter".
Carol