Personally, I don't do any kind of pressure tricks. Partially because of my preference for Keepers - those things are sharp, man - and partially because my fat sausage fingers have only two settings when it comes to pressure: too much and way too much.
But if you have the discipline to apply uniform pressure to your cards, then card maestro Ekat has a flourish you'll love. You'll need a slightly aged deck, something vintage in fact, because new decks will be way too stiff for the pressure fan.
Oh, here's a little bit of advice directly from me: Practice this one on a carpet. You're going to be spending a fair bit of time picking up dropped cards (or in my case, cards lodged in the furniture, roof, cat, etc.) and it's much easier to pick cards from a soft surface than a hard one. Seriously, my nails are ruined.
Add this to Damn Straight, which Ekat did a tutorial on last month, and you have the beginnings of an enviable cardistry repertoire.