I am a second year at WVU and can attest to it being a program that's pretty similar to what SIU sounds like. Morgantown is approx Springfield's size, but does have the actual University here. There is quite an active downtown scene that is actually growing as more restaurants and a wider array of types of businesses are springing up.
The program itself carries three residents per year, with a spot for matching in an extra research position now open. That spot is a recent addition and it has both "plug and play" projects waiting as well as an incredible amount of flexibility to start your own - so by no means are you pigeonholed. During that year you take no call and are allowed to moonlight at local ERs.
As for non-research matching residents the opportunity to participate is quite ample. Many attending have projects they would like to see get done and are willing to really help you out. With the program's trend of hiring more faculty that opportunity get better. Recently our sports guy, from Fort Bragg, via Duke, asked one of the residents to review a series of parachute jumping injuries. Research, however, is by no means forced upon the residents.
Our "new" chairman of about three years has tremendously strenghthened the program and in addition to hiring more faculty has expanded the department and takes a great interest in both resident training and education. Our experience leaves us easily prepared to start general orthopaedics directly out of residency. We are a level one trauma center that gets generally busy during the summer (you'll never see so many ATV or coal mining accidents in your life), but calms down during winter time and holidays are actually pretty good as the students leave town. In addition to a strong trauma experience, we get excellent spine, sports, and hand training. Six months of your second year is spent at a private institution next door to give you a good fell of private practice.
The residents are also a tight group that gets along well with each other. We play in summer softball and soccer leagues, and when someone isn't too lazy winter basketball. In addition, it is not uncommon to have a large group go to football/basketball games, or simply go out to grab dinner. Lastly, as with most programs, and I like the way orthooverhaul said this, we get mostly whatever fellowship we want in all subspecialties. I did not interview at SIU so I too can't speak for them, but I'm quite happy here and feel our training is well rounded and on par with all other programs I'm familiar with.