Hi Frederick, This is a very large question. To narrow the scope (and provide better references), what specifically are you looking to do?
When you say, sharable templates, what do you mean by that (templates are just LyX documents)? What do you mean, "convert a design from the drawingboard to a lyx template"? Are you talking about using a LaTeX document class that already exists, or writing your own classes and styles? Ditto for installing templates, as they are just documents, you mostly need to select a folder to keep them all together. There is a templates folder included with LyX, but I would advise having a user templates folder and copying the best/most used items there. When you say, bring two comps together, what are you looking to do? If you mean syncing documents between the computers, have a look at dropbox. Version control also works nicely (Subversion is best supported in LyX). As far as examples, I would take a look at the TeX showcase (http://www.tug.org/texshowcase/). That will give you an idea of what can be accomplished with LaTeX (and by extension, LyX). There are many resources. The first and most significant are the LyX manuals (available from the help menu). Start with the Tutorial, and then take a gander at the User's Guide, Additional Features and any Specific manuals that look interesting. Then, wander by the LyX wiki: wiki.lyx.org. The wiki is a treasure trove of information about how to better mesh LyX with LaTeX, and by extension, how to create documents which bring a childlike sense of wonder to the world. From there, you might consider wandering over to Steve Litt's LyX Library (http://www.troubleshooters.com/linux/lyx/). It includes some marvelous information, though some is a bit dated. I've also written information about customizing LyX and how to use/create custom document classes. You can find the links to those articles, and a brief summary of them at http://blog.oak-tree.us/index.php/writing/latex. Finally, I happen to be working on a book that covers this exact subject. (I happen to be working through the advanced LyX/LaTeX chapter right now and hope to finish it today, actually) If you would be willing to provide feedback on the chapters, I would be happy to make the LyX/LaTeX chapters/appendix available for your review. If you can be more specific with your earlier questions, i will also try and provide additional help for those as well. Cheers, Rob