orchids for potting versus mounting

[utah]

Calling on all the gods of orchid world

Overzealous newbie question:

Which types of orchids are best for mounting and which direction do you mount them in?

I've had phals and paphs for quite a while and I've become pretty good at repotting them and getting them to rebloom however . . . the orchid bug bit *HARD* and I think I've purchased one (or two) of just about ever type of orchid out there.

I get that terrestrial orchids and those who like moist roots (phals and paphs) need to be potted and kept moist but many of the ones I've purchased like to dry out between watering. Needless to say, I'd like to mount as many of those as possible so I was wondering if there is a list of orchids (and types of noids) that do better at mounting.

Also, I've read that it's best to mount them sideways or upside down (with the exception of the stanhopeas and others that require baskets) but what's right? I don't want to get an orchid started on a mount only to find out that I have it standing on it's head.

Any enlightenment?

I've read a couple of good books beginning to end (Ultimate Orchid by Sheehan - AOS and Orchid grower's companion - Banks). Maybe I need Orchid 101?

Thanks!