Thanks to Sun I now have the free (gratis) Solaris 10 DVD set. After sending my request in January I had given up hope as the intermediary who was mailing them emailed me to tell me that I hadn't filled out an application (so how did they get my contact information?). I've dabbled with Solaris 7 and 8 in the past, both x86 and SPARC, but the inclusion of Sun Studio on the latest set was what had sparked my interest. Hmmm... I have no idea if I can add an ATAPI DVD-ROM to my Ultra 5. Otherwise I'll try it out on a spare x86 box.