Simple Character Sheet
This is a simple, portrait-style character sheet that I designed long before very powerful WYSIWG editors. I used a rudimentary version of Word Perfect 5.1 and early versions of Word for this one.
Sheet of Special Characters
This accommodates non-traditional classes or monsters that should be able to gain levels with the players. It contains places to put the level, max level, which saving throw chart to follow, xp chart, hit roll chart, etc. so that you can keep a record of that special character.
Landscape Character Sheet
This uses a landscape layout in the traditional style (also see the one made with Scribus below).
Traditional Character Sheet
A landscape oriented character sheet based on the classic D&D character sheet.
If you want to modify it for your own use, here is the Scribus source file.