The Focused Hero
The Focused Hero is someone who isn't particularly powerful when compared to most other super powered people in terms of raw power and is, in some respects, a lightweight. Almost without exception these heroes have only a single power granted to them, however they gained their abilities, and it's generally one that isn't all that impressive. At least, it wouldn't be all that impressive if some of their more powerful counterparts had the ability.
What sets the Focused Hero apart from others is the realization that even this singular ability sets them apart from normal people. For whatever reason, they also have a great deal more dedication than other people. Because of this dedication they've trained their one ability and become very much in tune with it. Their level of competence with this one ability more than makes up when compared to others(like Mega-Heroes).
Even though they've developed their abilities beyond the levels attained by most, the Focused Hero keeps going. Most of these people aren't content with what they can do now so they train as hard as ever to push their powers to the limit. The reasons behind their dedication to honing their abilities are as varied as the abilities themselves. No matter what, these heroes generally impress others in the field.
That's really as far as I've gotten. Hopefully people are interested. What I mean to develop is various tables to choose motivation, the actual power, and even bonuses. The motivation aspect will revolve on why they've chosen to develop their power. It could be they were hired by some organization and trained, or even revenge for something. The power will be from a list of minor powers that have level based changes, like the Energy Expulsion powers. The bonuses, which I may or may not give, are going to be randomly determined attribute or skill bonuses based on how hard they train. That still needs a lot of work, and I'm going to stop here because this forum has been doing some weird things when I type messages past a certain length.
So, let me know if I should work on something more concrete.