John Hart wrote:
Thanks guys...I really looked into this yesterday, on both suggestions. It seems I needed to add something else to the mix before I do anything, and that was to add Community Builder to the sites. It seems to create the right environment for the next step of adding the blogs. MyBlog looks pretty comprehesive and could ultimately save me a bunch of work. $45 doesn't seem like much when I think about having to put in 40 or 50 hours of setup into doing it m'self. But, I'm still evaluating.
If you are only having a limited amount of users - not a free for all, Then you don't really need to by a blog component - Joomla has default blog settings.
As Futureguy stated: setup a section then categories (You can even make a section for each user then put new categories over time for them to fill up i.g. George's Blog [Section] 2009, 2010, 2011 [Categories]...real easy and you have lot's of control.
Things you have to consider Joomla Blog setup Vs, Commercial/Non-Commercial Blog setUp:
User control:
-- Joomla Blog setup - you have to set their permissions to "publisher" to allow them to publish (which gives each individual a lot of power to manage anyone publishers articles too) or you set them to "author" and review and publish their articles yourself.
-- Commercial/Non-Commercial Blog setUp: Usually just registering gives the individual users permission to write, publish and control who sees their articles and who doesn't without having contol over anyone elses articles. Of course, admin can see, edit and control everyone's articles.
Look and Feel
-- Joomla Blog setup - offers lot's of control and feel - you can really make a good looking blog with lots of cool ways to display and lots and lots of extensions, because your setting the blog up via Joomla's core. (That is what Futureguy is showing you via his example)
-- Commercial/Non-Commercial Blog setUp - you can get locked into extension specific component only, which can limit you, plus the look and feel might or might not be what you are looking for (I tried Mamblog - cool little component, but layout sucked really bad). But again, really test them out first or read up.
TIME: I am not going to seperate these, I am just going comment - anytime you put into Joomla, whether you use the product or switch routes or drop the project all together - is part of the learning curve and will benefit you later. 
John Hart wrote:
I have to get this authentication thing worked out. Some how, I have to allow users to log in to any of the sites, and they have access across all of the sites. There doesn't seem to be anything out there that will work. Getting kinda depressed about this.
hey...I was wondering....If I set up the separate Joomla installations using the same database, but different database prefixes....would I have authentication across all the sites?
I had a site that had 28 Joomla installs - so, I am aware of your login issue and authentication problems, but with more experience under my belt I was able to condense them into one install (boy, that was huge, demanding and required a lot of creativity), but it worked out for the best and in the end saved me a lot of time and headache.
As for how to - boy, ummm, well depends on what you are exactly trying to do and with how many installs - in other words - need some more details as to exactly what you are trying to do and what Joomla version you are using and extensions and what is set up on what install and also do you have any external setups (i.g. coppermine, forums etc...)
As for same data base but different installs - your authentication cookies right off the bat will be confused (I think - I am confused
) so, from personal experience and the best of my knowledge - I don't want to say anything till more details. :