Hi and thanks for the overwhelming responses.
I am not concerned about what type of keyswitches the keyboard uses. I am not a heavy typer, nor as you can imagine a fast one. In that regard I've always been happy with my rubber dome based keyboards in the past, but of course I have nothing to compare them to.
Using a macro to control multimedia functions would be fine, thanks for the autohotkey script.
I had not heard of gaming pads, looking online they all seem to be designed for left handed users whilst I am right handed. The Logitech G13 seems like it would be useable, minus the joystick and is around $120AUD.
The Gigabyte GK-K8000 is available here for around $200AUD however the later posts in this thread lead me to believe that even though its n-key rollover this may be limited to the regular typewriter keys and not the numpad.