Oh hai! I'm the Kent-riding, raw-lacquer-brommie-coveting student they're all talking about. I've had the Kent Ultralite for almost a year now, and I'm pretty happy with it. Just don't expect much from it--it is like a cruiser in speed and riding position (waaay slow and upright sitting, which is good for riding in traffic anyway). Thing is, I'm waaaaaaay smaller than you, and at 6'1", you will be cramped.
I'm thinking if you buy the Kent and put different handlebars and stem, it'll do a lot to improve rideablity, especially if you're over 5'7". I actually want clip on aero or drop bars...it'd make my riding so much better. A bigger chainring would help with the undergearing, although that'll nullify one of the nicer things about this bike, which is the chainring cover.
The Kent can still be bought at
http://ridethisbike.com, although they only have the three speed hub and single speed versions left.