Hi,
I wasn't sure if someone already pointed this out. Since you are a student, you are likely to be able to obtain a cheap version of ArcView (stripped down that is). You should check this out with the geography department at your school. As for me, I'm a GIS analyst for a private firm. We have a garmin geoxt for fieldwork. At home I have a Garmin Etrex Legend. My work doesn't involve fieldwork, but pretty basic map creation and data manipulation.