Moniker has been a disaster since Monte left and that was no secret. All you had to do was look at the forums or read some of the posts on the domain blogs. Do yourself a favor and move your names out now.
I see lots of recommendations for Uniregstry and I created an account with them, but I'm still a bit wary since they are practically a new registrar.
I know Frank Schilling is a co-founder so I'm going to give them a shot any way.
I would recommend:
www.dynadot.com
www.uniregistry.com
www.namecheap.com
www.pairnic.com
www.dyn.com
www.name.com