Not sure if you seen this but on Kickstarter there is a Delta Printer that has automated bed detection and leveling
http://www.kickstarter.com/projects/ttstam/openbeam-kossel-pro-a-new-type-of-3d-printer/posts
Not a lot of days left in the campaign if you were interested.
http://www.kickstarter.com/projects/ttstam/openbeam-kossel-pro-a-new-type-of-3d-printer/posts
Not a lot of days left in the campaign if you were interested.