Those Antec fans aren't PWM so hooking them to a motherboard is a waste. They come with Molex connectors (3 pin to Molex) so just use those. I have 4 in my current case, so I know from experience. Also $15 for them? What a rip! I get 'em at Fry's for $5 on sale!
My motherboard can control fans via voltage regulation, even 3 pin.
Could someone please answer my original question?
Thanks