MDhillslug,

I think the bike'll be fine for you, we can just jack the seat up higher for you if noone else has something you find a better size.

You want a mountain bike sized smaller, so you have lots of standover - and if it's smaller, it's a lot easier to get on and off or carry it over things (which I guess isn't the point of mountain biking, but I find it a plus).

I'm 5'1, my road bike's an effective 49, but I'm fine on a 50 cm. My inseams about a 29. So we're not that far off, I think.

I've got speedplay frogs on the bike, but can take those off easy for your spd pedals.