Well, things aren’t going too badly with DreamHost, I’m sorting out all my domains and CGI, databases, PHP etc and things are looking good. When I get dentedreality.com.au across, then I will know things are good 
UPDATE: Things are looking very good – .com.au is transferred properly and appears to have propagated pretty much everywhere, judging by the traffic on my old account. I’ll leave it there for a couple days longer and make sure I’ve migrated everything properly, then close my account at phpwebhosting.com.