Are they ever gonna dub Rosa-Vam in English?!

they did dub it in english. watch it at animefrak.tv

I dont think they will mostly because this anime has been out for 2 years and they have had plenty of time to dub at least the first season and it hasnt happend. but a fan on youtube has attempted to rectify that and has dubbed it herself.
The chanel is hellkitty theater and she has only dubbed the first 3 episodes. I think that its pretty good for it being done oleh an ameture.
AnimefreakTv.com has not dubbed the tampil if they have i cant find where they have.

Yeah they need to!!!!

they're not gonna dub it, at least not in the near future. i've heard they're working on season 3.

Yes, it's due release in 2011 oleh FUNimation. anda can hear the samples of the voice actors at YouTube. Just cari "rosario vampire dub" atau something like that.