Below are a couple links  I found helpful with this Epilog laser review.  I’ve found them and Universal a little over kill on price due to the extra features and CNC milled parts all done in the USA.  Feel free to leave your comments.

http://www.signs101.com/forums/showthread.php?58487-Universal-vs-Epilog-laser

http://www.engraversjournal.com/article.php/2743/index.html