Have you actually tried the triangles yet? Or are you just letting what you've heard intimidate you?
I know I was very intimidated by set-in seams because everyone says how hard they are and tries to find ways around them, but once I tried a few, I found they're not that hard, and some of the prettiest patterns have set-in seams.
Are the triangles in your pattern half-square triangles, quarter square, or other?