When modeling stuff on, remember: modeling means nothing from a rules standpoint.
If i gave a Tactical Marine 10 arms each with a different weapon, he would still only be armed with a Bolter.
The Power Klaw replaces the Choppa, and the Kombi-Weapon replaces the slugga. It doesn't matter if the combi-weapon model is held in 2 hands, how it is modeled is irrelevant. All that matters is the rules, and the rules say he can have both. Just shave off the extra hand from the Combi-weapon.
As for the Cybork arms, the Cybork Body upgrade does not grant any sort of Special weapon, so those sawblades are just for show.
Last edited by Deathscythe4722; 10-26-10 at 12:21 AM.