My Advice: A first job just out of school if heading to an established company your going to fall into their base cookie cutter template so whatever you put down is not really going to matter much, infact you could leave it blank and when HR asks you say 'I'm a n00b'

Salary negotiations don't really come into place until you have a few years under your belt, acquired some domain knowledge and have become seasoned, that's when the real fun starts.

If you really feel 'I must put something down' then ask a friend with a similar background who has already gotten an offer or already in the workforce what to expect based on the area you are looking in. Lastly, if moving to another state, city etc.. checkout how salary conversions for the areas.

What it really boils down to is you have to do your homework.....