I was originally looking for a Telstra plan deal with gift cards from the Good Guys, but then decided to walk into the JB Hi-Fi store at Broadway Shoppimg Centre Sydney to see what they had.
The sales guy told me about the $99 plan (150GB) now comes with a $700 gift card and the $69 plan (80GB) with a $400 gift card. Calls unlimited but international calls not included (I don't use it anyways).
Went for two of the $69 plans. Not as good as a $500 gift card, but good enough for me now.
Hope this helps others who are also looking for a deal but prefer jb over tgg. =)
EDIT: someone reminded me to mention that this is only available to port in customers from other carriers.