Those R1280 are a good start, but R1800 are the sweet spot.
Listen with headphones on this channel, I find the R2000 the most pleasant. They have 2.1 systems too, but I prefer the bookshelves.

This is another great channel for audio products, so check that too, especially for headphones and DACs.

The best mouse I ever owned was a Logitech MX510, but at some point Logitech started putting giant wheels in their mice… mouses.

Some gaming mice are designed with a particular grip style in mind as well, so, might be worth looking into what you prefer there for more comfort.

I really like the Logitech G602 mouse. It has 6 extra programmable buttons on the left hand side right where my thumb always used to just sit idle. It also helps it is super comfortable to use.

Well, since this was given the power of Necropants, this is the mouse I currently use. I got it for free from an ex-aviator's computer.

It's pretty great!

SteelSeries Rival 500 is an excellent mouse, except for the cable which is a bit stiff and un-braided, but that's no problem when paired with a mouse bungee.