I've been looking at the Selle Italia

Flite Gel Flow, not sure if anyone can comment on it. I know I should test ride them all, and I will likely borrow a couple seats for a few days then decide - but the Flite Gel Flow gets rave reviews and looked the most appealing to me.

All of the above are great suggestions. I lean toward riding what you have and upgrading to a new bike when you're ready. Don't rush. As for the saddle.....it's a very personal decision, but I've had the Sella Gel Flows on two bikes and think they're great.

Good luck.