Even though Computer Networking is in both identified future growth area and absolute skills shortage, can I actually claim the bonus points for work experience and qualifications for those two?
No, you can't claim both lots of bonus points. IFGA is for if you have a skilled job or the offer of one, in New Zealand, and AASS is for people without a job offer.
I have a skills assessment verification from the Australian Computer Society(ACS) can I use that for NZ as well or do I have to go for a skills assessment with the appropriate NZ association and would I need that at all?
This won't count in NZ, and, being a computer
engineer, you'll find that you not only need to get your university qualifications assessed by NZQA (get the IQA, both qualifications on one assessment), but you'll also need to get assessed by IPENZ, to see if you can claim your bonus points.
About your work experience, all that from Australia is totally unlike the NZ requirements. If you have work experience from after you got your university qualifications, it will all count.
For your wife's degree to count for points, it either has to appear on the INZ list of qualifications exempt from assessment, or will need to be assessed by NZQA.
You may find this useful.
http://onlineservices.immigration.go...anual/6954.htm You will find all the detailed requirements for being able to claim points under the various headings.