Tuffmail is good and i sent several people there, because the pricing is better than fastmail
I'm staying with fastmail, though, because it has worked really well for me, there are some clever niche features (jabber based private im, minimal ftp/http hosting) which come in handy now and then.
I last year switched to a family account for R and I - and and have about 55 domains in it - for some I even use the DNS.
I am also starting to use the address book more, but they dont yet have live sync, only import/export
My main problem is that they dont sent email updates or anything so I have to remember to check their blog and forums to hear of new features and tweaks.