Here are some different Character Sheets for the D20 RPG.

Official Character Sheet

Basic character sheet from RCR

Custom Character Sheet

A very nice Star Wars D20 character sheet built from scratch from the ground up.

PDF Fillable CS

This is a great fillable character sheet from the RCR, almost all the math gets done for you!

Excel Character Sheet

Here is a great updated CS that has all the feats and skills from the recent books.