Chucksrt,
I have been in the process of setting up my BUD for about 2 months and am almost finished. All I have left to do is fine adjustments for aiming so i can "see" all of the Clarke Belt. The reasons it has taken this long is that its winter and I'm in Vermont, ie: its BRRRRRRR out there, and I have very limited time for home projects.
Here is what I have found out about BUDS, both from here and from my own experience.
A BUD and its associated equipment can often be had for free, all you have to do is look in the classifieds, that is how I got mine. The hardest part of setting up a BUD is making sure that you have a perfectly plumb pole to mount the dish on. After that setup is relatively easy, and there are some really good resources out there to help you out.
Picture quality off of a well aimed BUD is excellant, the best I have ever seen. There are a lot of choices for programming, including "Ala Carte" ordering of just the channels you want. The typical BUD owner pays about 30% less for programming than a small dish user. For example, the only subsription channels i wanted were a&e, history, discovery, TNT, comedy, and sci fi. I am able to get JUST those channels at a cost of around 7.00 per month. There are also FTA (free to air) stations on c-band, and of course lots of wild feeds.
To make the most of a BUD you should make sure to set it up for both C-band and KU band, that will give you access to LOTS of FTA, including all of the networks (currently), and lots of specialty channels, some not even available thru subscription via the small dish's.
So, if you have the space, and are fairly technically competent, it is something I would recommend looking into. Here is a thread that has been running in the FTA forum, take a look
http://www.satelliteguys.us/showthread.php?t=35271
Hope this helps.