Helen: have you talked to your LBS? You might see what their return policy is on saddles and/or they may let you try some out. As you can see from Denise and Ems' opposite viewpoints - it's a truly personal thing. Same thing for a womens saddle vs a mens saddle. The best thing you can do is try different saddles until you find the one the works for you. And let us know what you find - we Love hearing about what saddles work for whom and why!
and good luck!
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"