And I know this topic is not relevant to Mikrotik. (sorry in advance) However I thought with a forum of such "gifted" individuals

(Mostly ISP's or WISPS). Someone must use some types of software for keeping track of their operation. We are only at 450 customers, and the demand for a good database is growing ever more important. So again, sorry in advance, hope to get some good feedback.
P.S. Please keep the suggestions based on a typical ISP or WISP layout. I have no need for hotspot software.