I agree a lot with Tom... Also, maybe providing (not the biggest) but like 10-15 MB for all domains signed with you for a week or two just so they can start off...(Otherwise that is a lot of space probably) & then they can find their webhost!
Namepros.com is actually very good! The only free domain registrar I know that actually works without need an outrageous post count... (1,000 - 2,000 posts for 1 domain) Kep it up guys!
I have just registered two names here, and all I can say is everything is great! Great and easy to use interface, great features, and best of all, great pricing!