I've been playing around with a lot of different mapping software lately, in part because the epic fantasy series I'm working on has need of a map and I haven't a clue what to do. I've wandered around through all of the various programs for creating maps and the best one I've found that takes into account things like temperature, geographic features, etc. is one called Hero Extant (mostly because it's free and doesn't crash; suggestions of better programs are welcome).
In any case, these are what I've come up with so far. I'll likely decide on one that gives me most of what I want and then re-map from hand to rework the mountains and other features to fit what I need. But for now, preliminary mapping is necessary!
Feel free to poke through and let me know what you think!