Hey guys, I posted this in the discussion forum, but it's definitely better suited for this subforum:
Thank you all for your help, lurking on this forum for the last several weeks helped me customize and complete the best secret santa gift for my friend ever!!
I thought I'd share my lessons, progress, and final shots with you all:
here's the full build log of what I did:
http://avinasharora.com/lightsaber/and here's the final shot:

So again, I wanted to thank the community for kicking butt and getting me into this!! He loves his saber :-D
All in all my key lessons learned are if you want a really good, polished, refined look, suck it up and have a professional powder coat it :p
Also the aluminum blackener stuff is definitely not an ideal surface coating for a frequently touched area without at least clear coating the outside.
And lastly, polishing the aluminum can give a really nice nearly-chrome effect, however it IS still aluminum, and as such is a significant amount softer than actual stainless steel with a real chrome finish so the perfectly flawless finish is somewhat temporary, although even with some minor scuffs and scratches from regular enjoyment it stays nice and shiny, and is not too difficult to repolish every so often.