Hi Critchley Clan,
Not sure if you had a look but the first step is to check whether you will have a good chanc of getting visa so visit the OZ immigration site
Visas & Immigration
You need to research what Visa you would be eligible for - most popular is 175 - Skilled Independant. Is your husbands job on the SOL (skilled Occupation List)? Check here -
http://www.immi.gov.au/allforms/pdf/1121i.pdf
If it is then you also need to check you meet the basic requirements - Age, Health, speak English, Work experience. .
Once you can confirm all this, then start the process - basically get your skills assessed by appropriate authourity (likely to ACS if you husband is in IT), pass IELTS exam, apply for visa, sort Health checks and Police checks - its a long process but you'll lots of info on here to help.
Sorry if this is too basic and not what your after.
Some people employ migration agents to help them
Cheers
Rob