Hey there!
If you think you'll need any portability, I'd recommend a MacBook model. However, if you think you'll only be using it at your desk, an iMac is the way to go!
For a MacBook, I'd recommend the 14-inch MacBook Pro with the M3 chip. The 14-inch MacBook Pro is great Mac for professionals who need portability. It has a great display, which is perfect for editing your photos and working with professional software. I suggest choosing a model with at least 16GB of unified memory and 512GB of storage, however, MacBook Pro with M3 can be configured with up to 24GB of unified memory and 2TB of storage.
14-inch MacBook Pro
- Apple M3 chip with 8-core CPU, 10-core GPU, 16-core Neural Engine
- 16GB unified memory
- 512GB SSD storage
- 14-inch Liquid Retina XDR display
- 70W USB-C Power Adapter
- Two Thunderbolt / USB 4 ports, HDMI port, SDXC card slot, headphone jack, MagSafe 3 port
- Backlit Magic Keyboard with Touch ID
For an iMac, I'd recommend the same configuration: at least 16GB of unified memory and 512GB of storage. But, just like the MacBook Pro, iMac with M3 can be configured with up to 24GB of unified memory and 2TB of storage.
24-inch iMac
- Apple M3 chip with 8‑core CPU with 4 performance cores and 4 efficiency cores, 10‑core GPU, and 16‑core Neural Engine
- 512GB SSD storage
- 16GB unified memory
- Two Thunderbolt / USB 4 ports
- Two USB 3 ports
- Gigabit Ethernet
- Magic Mouse
- Magic Keyboard with Touch ID
The M3 chip is incredibly powerful, and all Apple silicon Mac computers have extremely fast unified memory and solid state storage. Any model will be a great upgrade from your current Mac, which sounds like has served you well for a long time!
One other thing to note about any new Mac purchase is I'd recommend you add AppleCare+: AppleCare Products - Mac - Apple. You'll be covered for any issues and have a low service fee for accidental damage.
If you need additional storage, using high-speed external SSDs are a great option. For instance, the LaCie Mobile SSD Secure USB-C Drive - Gray - Apple has read speeds up to 1050MB/s and write speeds up to 1000MB/s. This drive would be great for storing extra data for your music and photos.
I'd also recommend you replace your Time Machine external backup drive if yours is older than 5-years. A high-quality drive, such as the LaCie Rugged USB-C Portable Hard Drive - Apple, would be a great option for backing up and safeguarding the files on your Mac and any external drives.
I hope this helps, and good luck on your new Mac!
Happy Holidays!
-Jack