Welcome to SPCR!
The zalman parts look like a good starting point, although I can't comment on the compatability of the northbridge heatsink (although quite a few people here have the Abit board with a passive zalman NB). Also you might want to do something about the radeon's fan - if you can get the artic cooling vga silencer v3 (must be V3 for the 9600 XT), it will help.
There are a load of resellers listed at:
If you're in the UK I'd get your panaflos from Dorothy Bradbury, I just did an order this week and got good service:
Hope this helps. Happy silencing!