Well, I'm a bit of a rookie with orchids, but I've had 2 catts for about 4 yrs. 1 I got to bloom easily twice a year (before I repotted it into the wrong size and type of pot and root rotted the poor thing). The other is a relative of the walkeriana and hasn't bloomed since my mom got it (then gifted it to me a couple years ago). I think she might have a chance of blooming this year! I think she's a once a year bloomer?
Most catt's need a decent amount of light - I've been told east window is good, some can handle a south window as long as it's back a little ways. (Thanks, Clint ) Watering is about every 4-5 days for me in the summer, 6-7 days in winter. They like to dry out between waterings. Right now, I've got humidity around 40-45% and everyone seems pretty happy.
Most Catts are usually considered beginner orchids so they're fairly flexible in culture. Just make sure they're getting enough light and water regularly.
Now I have a baby paph. What works best for them?