I did a brief search on the forum and not able to find this topic, sorry if i just missed it.

Currently I'm moving from tables to pure css and I have 2 vertical bars I need to stretch to the pull height of the page. What is the best method for accomplishing this?

You might want to read this article:
http://www.communitymx.com/abstract.cfm?cid=BAD95

if these 2 vertical bars are to stretch the whole page, I personally would suggest the faux columns method:
http://css-discuss.incutio.com/?page=AnyColumnLongest