Wow, you've been a busy little bee haven't yah Rogue!
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All looks good, did I give you the other 2000mhz mem modules?
That work bench looks perfect for your setup and YES a phase change unit would prolly fit right there on the bottom shelf or nearby. Sweet setup.
Use the 8600gts to get up and running and then pop in the GTX285. You can bounce the x-fi interface module and ribbon cable if you like, not really a necessary item unless your gonna plug in from that side for your headphones and mic.
Lemme know if you need anything, glad to help you along the path of addiction, you're getting good submersive experience now