The various Speed Graphic / Crown Graphics et al are eminently hand-holdable (if not exactly svelte) - that's exactly what they were designed for - and it's possible to pick up cheap refurbished models quite easily. I don't think they have parallax correction though. Or at least not all the various range.
I have a Crown graphic that has both rangefinder and viewfinder with parallax correction. You focus using one eyepiece and compose using the other. When you buy these, you have to make sure you have the right lens for the right cam. Very few people know that! The cams are a small piece of tin hidden behind a cover under the top of the camera. You open-up the bed using the hidden button under the leatherette on top. Open up the spring loaded cover just under viewfinder. Put the focusing to the closest distance to remove tension. You can pull the white metal cam right out from its track to change it... not user friendly at all.
The Linhoff models are much easier handling. Cams are on the camera bed.
You can always get something good from old press cameras. They're rugged but not the lightest things in the world...
Here is how to change the cam and what they look like.
[Sorry, image deleted during forum software upgrade. Please re-upload if so inclined.]
