Just a note of caution:
I don't have any knee issues and was told the Speedplays could Create knee problems because of the float. I've also heard from ppl that developed knee issues as a result of Speedplays. Clipless pedals are like seats, what is perfect for one person may not be right for another.
As for the road bike: I'm no help here, I ride a vintage Puegeot and LOVE it. There's a good chance I"m getting another road bike but it's a vintage Trek. (can you tell I like vintage??) Good luck on whatever you choose and go with KSH on making sure it's fitted properly. If it hurts to ride it, you won't!
and welcome to the board!......isn't that a great place to come "surf" to. If you get a chance (or maybe you already did?) there's a thread under the Open titled
"Getting to Know You", gives you a chance to meet us and -if you're so inclined-tell us about you!
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!"