For Cedega, you don't have to pay. It is called using the CVS version. You're just not part of the support community and you can't vote/add games to the database. Otherwise, everything else is the same between the commercial and CVS versions of Cedega.
As far as WINE goes, I have tried Crossover Office and it is pretty nice, but it needs to be free. I've used WINE, and I just use WINE in the terminal becasue the WINE-Tools GUI is crapola.