Hi there,
So Im just as new as you are im sure- but I just thought Id let you know that as a commuter I am using my first pair of mountain bike shoes (just some shimanos that were on sale at my REI) and the WTB pedals that came with my Pista.
As for shoes- it seems go with what fits your feet and what fits your goals- Im a commuter- and need shoes to walk around in, and didnt need anything fancy for now. If you are just training- keep your road shoes and just get a second pair of the same pedals you use on your road bike- so you dont have to change cleats.
I have a lot more experience with road shoes and pedals but for my commute I really like the mountain bike shoes and the WTB are working just fine- nothing special really. "read as- perfect for me- cheap and they get the job done"
Probably not very helpful, and all stuff you know, but I thought Id try to get this going.