Here's the link to my sedum blog from 1 year ago. http://stevespeonygarden.blogspot.com/2011/05/sedum-succulent-garden-hardy-succulents.html
This year I have manually started to start spreading my sedums out, and actually cutting back on the original one since it keeps expanding. They are very hardy so zone 6a winters are usually never a problem especially since they grow so low to the ground and get covered by the snow. All of them made it through the winter except the Angelina, but I have re-acquired that species so it's OK.
Here's the original sedum that I started out with.
These were acquired in a trade last spring
Sedum reflexum blue spruce
Sedum spurium 'Tricolor'
All 14 of these were acquired this year and potted up in 1 gallon nursery containers to help them establish before putting them all over the place. Some of these grow a little taller. Many of them also look pretty similar.
Sedum Spurium Dragon's Blood
Sedum Blue Carpet
Sedum Spurium from Turkey: This seems to be the fastest growing sedum I've had so far
Sedum Rupestre Sea Green
Sedum Jelly Bean
Sedum Joyce Henderson
Sedum Weihenstephaner Gold