oh yeah, seniority rules everything in the airline world. you can never have enough!
i don't know what your lifestyle is like as a corporate pilot, but i've heard a lot of bad stories about constantly on call, tied to a beeper, etc. oh, wait, that kind of sounds like my lifestyle here at comair!
seriously, though, until you get enough seniority to hold a line you won't have much of a lifestyle on reserve. the only thing that i can think of that would help you in that are is to actually live in the city where you are based. commuting is one of the worst aspects of the job, esp. in the post-911 world.
piperpilot, the mins at comair are listed on the human resources section at comair.com. realistically, however, that will probably find your resume in the circular file these days. i hear through the grapevine that they currently have no shortage of resumes from people with 3000-4000 and a load of multi time, not to mention crj flight time.
that being said, if you even come close you be out nothing but the cost of a fax by sending your stuff in. you just never know...