Westpac is still offering co-branded Amex cards, though I don't know how long they'll stick around. Note also that you can take the signup bonus as Qantas points and then switch to altitude rewards (see item 2).
Platinum min spend: $3000 in 90 days.
Black min spend: $5000 in 90 days.
Platinum annual fee: $150.
Black annual fee: $195 in the first year (then $395).
Platinum earns: 2p/$ on Amex, 1p/$ on Visa (Altitude option); 1p/$ on Amex, 0.5p/$ on Visa (Qantas option).
Black earns: 3p/$ on Amex, 1.25p/$ on MC (Altitude option); 1.5p/$ on Amex, 0.625p/$ on MC (Qantas option).
Altitude points convert 2:1 into Velocity, 2.5:1 into Asia Miles and KrisFlyer.
Exclusions:
Existing Westpac customers who currently hold an Altitude Platinum or Altitude Black credit card, or who have held one in the last 12 months, are not eligible for this offer. The bonus Altitude Points or Qantas Points will be credited to your points balance within 12 weeks after the eligible spend criteria is met.
Do they still have the first year free if already a westpac account holder?