yup they do accept,and namecheap also accept.i had my account at dynadot but sifted to namecheap for better service.
I register all my domain names with Dynadot. I recommend their services, I can't give feedback about the support because I never had any problem with them. Edit >> They accept moneybookers!
I have few domains registered with Dynadot and I never had any problems with them.I like that it it very easy to push domain into another Dynadot account.