Saddleman makes seats that are supposed to help make long rides more comfortable by taking pressure off the prostate, and distributing more of it onto your "sit bones" ( bicyclists know what I'm talking about ). I've been wanting these for the wife and I, but haven't pursued them yet. A bit pricey, but the reviews are great and craftsmanship appears to be excellent as well....so the pricetags are likely justifiable
http://www.saddlemen.com/ninja-series/ninja-250r-ex250