http://www.register.com/promo/acquis...kID=EMAoFkudyW
I just got this in an email from Register.com this morning. I didn't go through all the details and know that Register.com's prices run nearly twice that of GoDaddy.com. However, what I did see on the promo page mentioned that there is no further obligation, so it might be possible to register a domain for that first year for free through Register.com and then transfer to GoDaddy.com prior to the end of the year.
Just passing along the info. I used Register.com almost 8 years ago when I registered my first domain but ended up switching to Tucows then GoDaddy - so I can't endorse their service. Maybe someone else has more recent experience with them and can enlighten us whether it might be worthwhile going for the free year?