I am happy to say that I think I may have found the perfect bike saddle! I've been looking for a while and tried a couple different kinds. This weekend I tried the Wylder Callisto saddle. I rode about 20 miles on it this weekend and I think it is THE ONE. There are a bunch of things I really like about this saddle, besides of course, the most important thing: comfort.

These are the cool features of this saddle:

1. It has an ergonomic cut-out. This is the only problem I had with my old saddle - after a lot of riding my butt still felt okay, but I would start to get sore "up front".
2. It has plastic bumpers on the bottom and kevlar edges, which should prevent it from getting torn up in my crashes (my old saddle is pretty torn up around the edges).
3. It is a women-specific design, while still being slim and easy to get over the back (they say women have wider hipbones so the women's seats are always huge honking things that I could not get my legs over for steep downhills). Also it is a good/average weight - which is rare for WSD.
4. It says it has an "integrated suspension system". I am not sure what that entails really, but it is true that it seemed to feel cushioned on the bumps.

The other saddles I have tried are:

1. CODA 900 - this is the seat that came on my bike, and I've been using it for the last 5 years. It felt surprisingly comfy, except as I said above, a bit of soreness after a lot of riding due to lack of cut-out. It is also getting a bit worn so it was time to start thinking of a new one.
2. FISIK Nisene - this saddle came on Ted's new bike, but he wanted to use his usual one (the Selle Italia Flite Trans Am) so I tried this out on my bike. Not comfy for me.
3. Terry Damselfly - I bought this seat and tried it out for a month, because it was also an ergonomic women-specific design which was narrow. But OUCH! Terry has a great reputation for women's saddles so I'm sure this one must work for somebody - but not me! It felt TOO narrow or maybe just had padding in the wrong spot, or something!
4. Wylder Tangor Ti - Actually when I ordered the Callisto they made a mistake and sent me this one instead, so I thought I'd take advantage of the situation and try it out for a week. It felt okay but was VERY wide, so hard to get off the back for steep downhills.
5. Selle Italia Flite Trans Am - I thought I'd try out Ted's saddle. He loves it. It felt alright to me, but I didn't ride it very long so it's hard to tell.

So you see, it has been a long journey to arrive at the Wylder Callisto. I am so happy that it feels comfy, because I really like everything about it. Yippee!

I also want to say, that if anybody is looking for a good mail-order bike component company, I have to recommend Speedgoat. They seem to have the best prices AND they are very helpful, great customer service. They were also quite good about taking things back, like the Terry Damselfly saddle.

Another side note, I bought cheap off ebay 2 more CODA 900 saddles, before I had found that the Wylder Callisto worked for me. My thought was that I could try to make my own cut-out. I might still try this just to see how it would work - and it'd be good to have a back-up saddle just in case. If I do that I'll write up a report on how it goes! :)