Wizards stated that they will have closed Beta on their character generator relatively soon considering that they are going live with paid susbscriptions as of today. I have not seen many character generators out there, but I know that Hero Forge is a good option. While not a generator, it is a fill in the blanks spread sheet that kind of holds your hand as you go through. I would give up a link, but I am at work and the site is blocked by the firewall here. A quick google search will reveal it in no time though.