+1 on Russell. I followed the sage advice of Bounce and Warchild and have been extremely please.
Funny story: I had my bike in for some warranty work and as the mechanic was about to run it around the block, I mentioned the Russell seat. He sat on the bike, his eyes widened and he said, "My God, its like sitting in a catchers mitt. How cool!"
It just depends on what you want. I can now ride all day, after day, after day, and be ready for tomorrow. I can still "slide over" for corners. What's not to love?