Training in the Winter - location?

Hello,

I'm new to this group so maybe this topic has been covered before, but
I thought I would ask:

I have taken 7 or 8 lessons scattered over the last 5 years but I just
haven't been able to dedicate the time yet to complete my glider
rating. I've also spent a fair amount of time soaring with a friend in
his glider a few years ago but I just haven't completed my training.
I have many competing interests, but I'd like to re-focus. I'd like
to take a week of vacation this Winter and focus my time at a soaring
center in the US to work on my glider rating. Any recommendations on
where to go? I have mainly spent my time the last few years flying
3-axis hang gliders (Swift and a Millennium). I'd like to finish up
my glider rating as well and I'm looking for a place to travel to this
Winter to help move things forward.

Thanks in advance for the help.

John in Wisconsin