My GM actually made me buy 10 points of sight group flash defense for my old blind mage, because "It isn't fair that his limitation makes him immune to something as powerful as a flash"
When he insisted that I couldn't have any ranged spells because I'd have no way to aim them (thats the fun of it!) I gave up and created a sword-chucker.
Also, on the DR point - Vulnerability is applied before defenses, DR after, so you still take more damage.
Anyways, here's my entry (assume 10 STR character)-
I've Got a Knife! - +10 STR, Only to wield weapons (-1 1/2), Does Not Add to base STR (-0) Real Cost: 4
Seppuku - 2d6 HKA, NND (Prozac), Does Body (90 Active Points), Self Only (-1/2), OAF (Knife, -1), Required Hands (Two-Handed, -1/2) Real Cost: 30