<< is his hand big enough to hold the lightsaber? >>
No, but he does have two hands, ya know. Anyway, there were Dark Jedi who held a saber in each hand. Plus, there was one, Xar Kun (sp?), who had one in each hand, and controlled two others with The Force. :Q He's long since been killed, but his spirit roams the planet he was killed on because it's far too powerful to be killed or the energy dispursed or whatever. -and he's still a badass.