Avs are as easy as phals--same general lighting. There is a special soil for AVs that is light and fluffy...I would recommend it for beginners. They need to be kept evenly moist (think Phal).
As for the lillies, partial sun is fine for them. Direct Texas sun will wilt and burn them as well. My mother-in-law grows them up next to her house...they get direct morning sun and dappled afternoon shade.
Congrats on the Ascocenda--I'm not telling!