Yes the standard fans are all removed. I used a 6 fan hub I purchased on ebay for a few dollars. You can also daisy chain although a hub is cleaner and less wiring. I don't really need all the cooling, but the fans are so silent and I like the look.
I like the build!
I pulled the PSU from my previous SLI build. That PC was only pulling 600w so it was still overkill. Live and learn :)