Here's the setup: iMac (late 2009) 4gb Ram Lacie d2 Extreme Firewire 800 drive OS 10.9.5 Here's the problem: I'm using the iMac as an iTunes hub to stream music and video over 802.11n to various Airport Expresses and Apple TVs. It streams okay but... The Lacie drive takes over 2 minutes to mount (if I'm lucky) and iTunes takes over 2 minutes to load as I patiently await the beach ball to stop spinning. I verified the disk but I don't trust Disk Utility telling me it is okay. Is my drive dying? Unfortunately, this mac has USB 2.0 so I'm assuming my replacement should also be Firewire? Or is the iMac too old or too underpowered? (Since I'm running Apple's latest software and OS) Any input is greatly appreciated.