I just got a new Swift folder, made by the inventor Peter Reich, Design Mobility in NY. I looked at all the folders before going with this option, I am very pleased, it suits me perfectly. Here is what I got for about $1,000--
Custom sizing, Shimano 105's; Capreo cassette, custom Velocity wheels. The bike is a 9 speed, single front sprocket, and the gearing is about as good as on my carbon road bike. Riding this bike is a blast, it is fast, fun and stable, and you don't know you are on a folder. I got the bike for when I live on a boat, but I will be using it a lot more than that.
Bottom line--for the cost, and the customization, I ended up with a rock solid, high level componentry, extremely well made bike. A comparable Bike Friday would have been in the $2500 range, and it doesn't fold as easily. You can reach Peter at firstname.lastname@example.org. Also, the bike is light weight, under 20 lbs, steel frame, extremely well made, bullet proof design.