Unfortunately neither of the more commonplace C.annuum survivors is any bigger or flowering earlier than this year's seedlings - so not really much point overwintering that species is there?
My annums, all of which got radical haircuts around September '09 have been putting on growth since February and I picked my first ripe chillies in early May (from one of the smaller varieties, Apache, which simply refuses to die). The remainder are about a month ahead; as you say, no significant advantage.
Like Bugloss I'll be doing an early sowing of a few, as yet undecided varieties, over the next few weeks; I was picking Fatalli's and Mustard Habs in February, but these were enjoying 8 hours of artificial light a day.