Chosen Solution

Hello, I would like to replace my hard drive in my iMac 2009 (EMC 2374) according to this tutorial: iMac Intel 27" EMC 2309 and 2374 Hard Drive Replacement I’ve planed to buy a Seagate FireCuda SSHD 2 To (3.5" 2 To 7200 RPM 64 Mo Serial ATA 6 Gb/s). Do you think it’s gonna work?

Yes it will work. iFixit even sells this exact drive for this upgrade: 1 TB SSD Hybrid 3.5" Hard Drive