I can give you the opinion of a very experienced grower, AND KILLER, of Paphiopedilums however they remain one of the easiest orchids to grow.
Species are generally a bit more difficult to grow then hybrids
They will in all likelihood struggle as outdoor plants. They really enjoy consistent care. Regular watering, consistent light etc.
Flowering should be regular once conditions are met. Some like it a bit cooler, some a bit warmer, but generally 58- 82 degrees during the course of a year. If the temperature gets cooler for stretches water less, too warm, water more frequently.
They enough regular fertilizer. Too much and too often might get you loads of leaves but fewer flowers. Too little is better then too much.
Now light should be bright in a nice breezy location, very little direct sunshine.
Hybrids to look for: Anything with "Macabre" in the name. Anything with "Lehua" on the label. Anything with "Fred" in the name or "Petula". They come from the Lehua Orchid Nursery in Hawaii and produce gorgeous, easy to grow and yet VERY PRETTY FLOWERS!!!!
That pretty much sums up my knowledge.
Things like Pahpiopedilum stonei, rothschildianum, philippinense in the name are a bit more difficult to grow.
