Pick up the books:
Stick Control for the Snare drummer. (published back in the 30s or something, but it's still the standard)
New Breed - Gary Chester
They are pretty much the industry standard for educational drum books. You can never really 'finish' either of them.
Get a metronome and a practice pad also, and work through those books.
Remember to start slow, and work to keep each note at the same volume.
Speed comes with
control
If can, get a teacher. There is not a single drummer (even professionals) who can't benefit from a good teacher, whether they're helping to develop technique, or just showing you a new approach to drumming.
At the very least, have a few lessons just to make sure you're not using potentially harmful technique, and to make sure you're holding the stick properly.
One last thing: Don't tense up, try and stay loose and relaxed. If you're dropping your stick because you're holding them loosely, don't worry, that's more a good sign than a bad one. Holding sticks too tightly uses more energy, and can lead to wrist problems.
Most importantly,
have fun
http://home.earthlink.net/~prof.sound/
Read that, also. Everything you ever need to know about tuning drums, and more.