I am going to back up my boy Hoist here.
Both of these bikes are in the "touring family" but they are totally different. To answer Colbalt's question, I think he needs to ask himself, "what kind of riding am I going to be doing?" I went from an Ultra to the SERK. The ultra was great for long trips, but I was only taking one or two long trips a year. The majority of my riding is weekend pleasure rides, and comuting. I, like Hoist, found the top heavy weight (especially loaded) to be a real detriment, especially when you had to ride through congested areas. I loved the radio, but I never used the CB, or the intercom.
Anyway, so if Cobaltman is planning on doing several long trips each year, he will probably be happier with the SEUC. If you are looking for lighter more agile bike, stick with the SERK. [smiley=soapbox.gif]
The only real solution is to buy one of each.

I have some sincere doubts that you will be disappointed with either one. Go with your gut, your first instict is almost always right.
Later,
Ghost