I remember there being a way to display some Greek letters in a slightly different style (like how people often write Greek letters a bit differently than they're printed). Can anybody remind me of the command for this?
There are several packages that render slightly different Greek letters, such as the
You can check this and many more in the Comprehensive LaTeX Symbol Guide, starting from page 90.
I came across this document: http://www.tug.org/pracjourn/2006-1/hartke/hartke.pdf, which is a review of different fonts for math mode. In the document it also shows the rendered version of each of the fonts, to give you an impression of what the final result will be like.