I'm 5'11" and have an Orbea Marmolada. My other (older) bike is a Bianchi Alloro that was always too big for me.

I share your love for the steel frame and was seriously looking at Colnagos for the longest time!!! The Orbea, to me, was the best bike for the money at the time.

Have fun -- I think you'll know when you find The One! It's so exciting!!!!