[mindcrime]

I use a combination of GoDaddy and Gandi.net for registration (and I may have one really old domain still hanging around that's with Register.com, not sure).

Hosting is Rackspace, mainly due to their acquisition of Slicehost. I thought we might move once the acquisition went through, but so far Rackspace has been fine, and I'm not in any particular hurry to leave, even though I expect we could find cheaper services if we put some effort in.