If you haven't had a bike with polished rims before I would strongly advise against doing it. Bling is fine, but if you have to spend the extra time washing and rubbing instead of riding it doesn't pay off, IMHO. I had a bike with stock polished rims (
http://zephyr.xxc.cc) and I found Bandit's black rims quite a relief. I couldn't stand oil and chain lube stains and dust on Zephyr's rims and ended up washing and polishing the bike more than really necessary (don't let my wife read this! :) ).
Just be aware of the tradeoff if you take the polish route, that's all.