ID Help Please

ID Help Please

I rescued this off of a sidewalk in the French Quarter last summer, someone had dumped it because it was dying from overwatering. I took it home and repotted it, it has flourished ever since, it's about 3-4 times the size it was when I found it. It even survived a month without being watered and being left inside with no sun during Hurricane Katrina. It isn't that pretty, but it sure is hardy. :) It resembles some sort of palm, but I haven't been able to find a palm-type that matches this so far in my search. Thus, I turn to you lovely people. Any Ideas? The full view, height and all. Closer view of the spikes/leaves at the top. Close-up of the trunk? Stems? Stalks? It's more wood-like than anything.
My apartment.

My apartment.

my hot household & our apartment

my hot household & our apartment

The grass really IS greener on the other side!

The grass really IS greener on the other side!

Parsnips

Parsnips

Green rose

Green rose

Im so excited…I just cant hide it

Im so excited…I just cant hide it