I'm about to send my test sample back to 23andmel.com for genetic testing. They send you the kit via DHL with a return envelope.
Yes, that's what I did too - a very good service. Just make sure the DHL office is still there when you drop it back - mine (in Melbourne) had moved from their listed address.
I tried to get info from Vitamin Diagnostics in the US re the methylation panels (which Rich von K recommended over gene tests) - but found them pretty slack; also sending the sample to the US seemed a lot of bureaurcracy + dry ice etc.
Melbourne Pathology & other Australian labs will test for a couple of the MTHFRvariations, for maybe $50 - but 23andme provides the bigger spectrum.