Where can I get the CentOS and OpenSolaris CD/DVD installation media?
CentOS can be freely downloaded from http://isoredirect.centos.org/centos/5/isos/i386/. OpenSolaris can be freely downloaded from http://www.opensolaris.com/get/index.jsp or register here online and submit the form to request for an OpenSolaris 2008.11 x86/x64 media kit. A media kit would be shipped from Sun Microsystems absolutely free of cost to your doorsteps.