This might seem odd, but my advice is to make your own power cards. Don't rely on the ones that are automatically generated -- they contain more information than you'll need, and are too dense to act as a streamlining tool.
When I make power cards for new players, I make sure to use finalized calculations based on that character. Cutting out that small amount of math really, really speeds things up (and no, these aren't illiterate morons -- it is simply that streamlining things by doing the calculations ahead of time does indeed save time, energy, and effort in the long run).
I've found that after I make my own power cards (re-naming the powers to things that are more thematically enjoyable for my particular character), then things go much more smoothly. Furthermore, the simple act of typing out and designing your own cards also helps solidify the way each power functions in your head, and helps trigger your memory in the heat of the moment when you're trying to recall all of your options.
And seriously ... I can't stress enough how much more fun it is once you've re-themed and re-named the powers to fit your own character's particular style. Sure, the numbers are the same, and the description is essentially just fluff, but when my monk player throws down with "... I just wanted to destroy something beautiful!" everybody knows exactly where his head is at.
With a minimum of effort, you can make your first game much more enjoyable.