http://www.dss.state.la.us/departmen...nes.html#10000
This is the chart for my state if you make 10K per month.
This assumes of course that you make 10K per month and she makes nothing, then your total obligation for 1 child would be $1088.
If you had 6 or more children your obligation would be $2538
If you made 10K a month and she made 2K a month your payment would actually go down a little bit.
Alimony is totally at a judges' discretion, but child support is a pretty standard amount. (At least in the states I've lived in)