Barry
Thanks for the kind words. To answer your questions, you can get the computer pen blank from alot of dealers that sell Berea kits. Such as Bear Tooth Woods and others. I choose to get them from over at the IAP pen turning site. They have a classified section there and people sell all kinds of things and blanks are one of them. One of the original makers of the computer pen blank now sells the generic version which I show and here is a link there. His name is Bruce. http://www.penturners.org/forum/showthread.php?t=47284
As far as the red Sierra blank, I made that one myself. I do not know of anyone making them. They are not hard to do. It is just segmenting.
As far as sharpening the tools, that is a must. Need to have the equipment and learn the process. I use a slow speed grinder from Woodcraft and use the Wolverine shapening system. Quick and easy. The tool of choice for me in pen turning is the skew. Love to see other people's pens and turnings too. Hope this helps.