I have read quite a few other threads throughout on the subject. I also have been reading some postings and references that come up from ACS about healthcare reform...
The gist of what I read on the topic is that CT residents are not having it as bad as predicted. After reading your question, I did a google search for CT jobs.... seems quite a few posted and....
http://health.usnews.com/articles/health/healthday/2009/07/28/heart-surgeon-shortage-predicted.html
http://www.medpagetoday.com/Surgery/ThoracicSurgery/9827
http://www.rwjf.org/humancapital/digest.jsp?id=20586
In the other threads, I have seen Blade respond frequently and maybe will will join with more informed commentary.
Ultimately, I think you should pursue the career that you will find satisfying. Attendings and mentors are great to a point. I heard numerous folks talking about the lack of career of anesthesiologist at one point. The doomsday naysayers of a specialties fure are often uninformed and wrong. Do CT if you want or Plastics or Optho or Ortho or etc.... But do it because you want it.
JAD