Thanks, I did take your suggestion when I was outlining my tectonic plates.
Here's so far... final complete landmass, ocean, mountains and elevation (sort of). I'm trying to do a satellite-style map first, so I have something very detailed to reference when I'm working on single-continent/region maps.
I tried to make ocean trenches (following my seperating tectonic plates, like I made the mountains along the ones smooshing themselves together ) but, it failed pretty drastically. It just looked like more underwater ridges/mountains. I tried searching for trenches or canyons tutorials, but no such luck. : / oh well. They're not terribly important, unless we're getting dumped in some underwater culture at some point. And I don't think there are any of those. >.>
So, now off to figure out how to match the climate/ecosystems he wants with what I managed to map. Should be interesting. :p