Well...your paying musicians aside, why would it be necessary?
1 Cor. 16--
Now concerning the collection for the saints, as I have given orders to the churches of Galatia, so you must do also: 2
On the first day of the week let each one of you lay something aside, storing up as he may prosper, that there be no collections when I come.
The teaching I've heard over the years is that you are to have your offering/tithe already set aside...now if the pastor wants additional offerings for other things, I can see where an ATM **could** come in handy..but like I said I would not care to see one in the church