Three-quarters of the computerrelated calls I receive are from people looking for a simple, cheap estimating system; the other 75% want an inexpensive, easy-to-use application to do job-costing. (My math isn't wrong — half of the callers want both.) There are plenty of the expensive, hardto- learn variety available. But there hasn't been an application that tackled both estimating and job-costing head on, while retaining the elegant simplicity and low cost of a program like, say, Quicken. Until now, that is. Chris Berg of Berg Mechanical Corp. has written a program he calls Trackit that may be as close as you are going to get to a lowcost solution. Trackit estimates, schedules, and tracks the costs of your jobs, and