Just remember that FBAR is a reporting form; it goes to the Treasury Department, not the IRS. In and of itself, filing a FBAR does not generate a taxable event.
If you are filling as 'married filing separately', your share of interest earned on a foreign account is reportable income in the US just like any other interest income. You may or may not be required to file additional forms with your US return (likely not, if a small amount of money).
Most of this stuff is only onerous for high-income folk with lots of investments, retirement accounts and so forth. For the rest of us its just a lot of paperwork, but more annoyance than anything.