Sorry mine wasn't too in depth, I was on my break on my IPhone and didn't feel like typing on it too much.
Mich Ayres gives you a lot of practical mentalism effects you can do with no gimmicks. Just cards. He goes a lot into scripting, theatrics, and even transitional scripting to get you every detail.
In his S'lie manuscript he explains his Shuffled System which is a greater/easier version of Richard Osterlind's BCS.
Only one or two tricks rely on the his shuffled system but the rest are impromptu and GREAT!
Matthew Mello has a few nice mental magic effects that are surefire and quick. i.e. his Card at any number.
I do Lee Smith's Third Degree which is from his Step System
http://www.youtube.com/watch?v=zH_S8sQ0TbY
I performed it to a random audience for the first time earlier this month and it went pretty much how you see in the youtube video
Tell me what kind of mentalism you'd like to do with cards so we can get into specifics.