Yet another reason I love this forum; the people here kick expletive.
Way to be awesome, Jet!
I'm sure others can chime in with their own personal tricks, but I've written 2 multi-draft screenplays (one as part of my degree and the other just for fun) but here's what worked for me to get my ideas on paper (Well, screen...then paper):
-Make a treatment, then build a detailed outline from it
-My first outline is usually about 7 pages, and roughs things out without getting bogged down in scenes and details. It's mostly to make sure the flow is right.
-Make a more detailed outline. 20 pages is a good working length for me. This is when you start throwing in specific scenes and locations as well as secondary characters.
-Make an even MORE detailed outline. Basically make this outline as thorough as you want, but the more detail you have here, (including some of the dialogue) the easier it is to write. (for me...so maybe it will work for you too) For the second screenplay I wrote, my final outline was something like 60 pages.
-Start writing your script, pulling characters and scene descriptions straight from your outlines, and working the dialogue out from the outlines.
-I find it's easiest to write dialogue by speaking it out loud, so you may want to find a way to record yourself speaking and ad libbing over your outline to help you.
-After it's all done, get a bunch of friends together, crack some drinks, turn on a camera or audio recording gear, and do a table read, assigning roles to each person, leaving you to read the scene descriptions. Watch that video back, making notes of plot elements that need tweaking and dialogue that doesn't work (Listening to other people saying your lines will really point those things out) and begin your editing process.
Lather, rinse, repeat. It's a long process, but when it's done, it's rewarding to hold your creation in your hands. I hope some of these ideas might work for you as well.
Best of luck to you, deconx!
-Nick