I've attached the comments of William Hendriksen from his New Testament Commentary on I and II Thessalonians, and specifically verse 5:23. I think you will find it very helpful as he discusses the various views, how they are derived and critiques them all. The attachment is in a ".doc" format (MS Word). However, if anyone is unable to open/read the document and would like to do so, PM me and I'll e-mail you the same article in ".pdf" format, which can be read with Acrobat Reader.
However, if you have an AOL e-mail address I will not be able to accommodate you because AOL blocks all e-mail sent from The Highway as spam, even though they have been informed that it is not. <img src="/forum/images/graemlins/mad.gif" alt="" /> So, you will need a non-AOL address if you want me to send you the .pdf version.