Boncuk,
Thanks for the information. Although $750USD is a bargain, free (PCB123) is even cheaper. (If you want to do more than 4 layer boards or larger than 160mm x 100mm, then Eagle is about $1,500USD) However, in the long run, I will make the cost of Eagle back in the prototype board savings alone ($2.50 per square inch for untested prototype boards) because PCB123 requires you to purchase boards from them. (This savings would not be the case if I only had one or two board designs or for larger sized boards.) BTW, I could not find a U.S. sales link on the bilex-lp web site.
Thanks,
Dale