The major different from the MOBO you choose is southbridge ICH9 and PCI-E x16 1.1, while P43 have southbridge ICH10 (supporting AHCI); PCI-E x16 2.0
I don't know if it worth waiting...
For the fan, I mean case fan, not cpu fan
http://www.ebuyer.com/store/Componen...bcat/Case-Fans
Your case spec:
HOW MANY FANS CASES CAN ACCOMMODATE AND SIZE AND LOCATION
---1x8omm or 92mm or 120mm fans in the front of case.
---1x92mm cm 80mm fan in the rear of the case.