I make terrible, terrible rice on the stovetop, regardless of what technique I use. The Alton Brown baked brown rice recipe was a gamechanger for me, because you just stick everything in the oven for an hour and the rice is awesome. I'm sure a ricecooker would do an even better job, but the recipe is worth looking at:
http://www.foodnetwork.com/recipes/alton-brown/baked-brown-rice-recipe.html.
I am very paranoid about reheating cooked rice, but I do freeze it right after I cook it--I just put a meal's worth in a Ziplock and squish it so it's flat and the rice will freeze faster.
There's another thread right now on Goodwill kitchen items, and it seems like Goodwill would be a great place to look for a ricecooker!