A while ago I had U-verse VDSL running over Coax with one of these type of baluns:
http://www.bourns.com/data/global/pdfs/3670.pdf
It worked quite well, and it looks like the balun is ADSL2+ compatible as well.
http://www.bourns.com/data/global/pdfs/3670.pdf
It worked quite well, and it looks like the balun is ADSL2+ compatible as well.