Finally got around to buying a domain: $AU33 for three years from the nondescript Website Domains registrar. So far, so unimaginatively kosher. I availed myself of the freebie DNS provided by EveryDNS; they're somewhat limited in the kind of records they'll serve up, but more importantly are apparently reputable.
At the moment I've got Apache running on Debian on my dear old P120 at home, so it's all terribly slow. I feared the 64kbits uplink would sour the deal but Blosxom blindsided me by taking several tens of seconds to render the index pages. perl, gotta love it.
DNS Report has proven useful for linting all that stuff.