they should introduce a droid class to play.
droid characters have always been a massive part of star wars and there was some pretty epic lightsaber wielding droids in one of the movies if i remember correctly.
no just no!!
In the star wars films droids have all ways been side characters and usely used for comical relief and they have never been main characters.
also if you where talking about General Grievous he was not a "droid" he was a cyborg, as he still had his organs from when he had his real body, which obi wan kenobi shot with a blaster in Ep3.
http://en.wikipedia.org/wiki/General_Grievous