well, it's always hard to say what one should buy, because it depends on what you're doing and what suits you.
from your post it looks like you're looking for magic items and not flourishing stuff, so what i would recommend from d&d is:
trilogy tricks disc,
ray kosbys Impossible Card Magic (if you're looking for some harder tricks/sleights)
michael webers life savers (i don't know myself, but i heard it's quite good)
totally out of control
smooth operations seems to be pretty popular, but you might want to get another opinion on that one since i personally don't like it that much
so that's about it, since you already have surfaced, which is great in my opinion.
only if you're more of a beginner i'd recommend royal road to card magic too.
but as i said, it's not that easy to help someone when you don't know alot about that person, so i think if you read the reviews here at t11 about the products that d&d offer you'll be able to figure out what you will like.