Steampunk Campaign

[Xaroth]

My DM is going to be starting a Steampunk-themed campaign and has created Engineer classes to be made available to us. I'm using a Warforged which an Engineer is able to modify so long as he has the correct parts, and I'm wondering:

What do you all think would be the damage of a fully functioning Big Daddy drill if it were crafted onto the Warforged's right arm?

P.S. I named my Warforged "Super Megatron 9000".

[Xervous]

Obviously you would need to homebrew up something... I know little of Bioshock so here goes...

First off, lets just say exotic and assume you're proficient.

Give it 1d10 for damage, if it hits... perhaps grant a free grapple check and then automatic damage each round?

[Rubik]

How about the warforged battlefist, from the Eberron Campaign Setting? Give it piercing damage, and...