The Terry Raven seat claims to have sit bone support - I found my sit bones hurt during longer rides.
I rode on a Terry seat for years that I bought at MEC for probably about $30-50 max at the time. I could ride 100km plus in running shorts. When I finally did need to replace my seat I couldn't find any in town. I ended up buying another seat sold by a high end cycling shop and actually had lacerations on my perineum from it! I ordered a Terry seat on line and other than the sore sit bones it's 99.9% better but not as good as my old Terry. I'm going to try out the Terry FLX in the Spring...;