I'll second the pointer to
http://www.tandems-recumbents.com/. The website never quite got finished, but Rick Steel and the shop are both top-notch. I bought my RANS V2 from them in 2001 and they have been good to me all these years. They have many brands and models to test ride, but you need to make an appointment so Rick can give you his full attention.
Tom Balmer