The 60D is an amazing camera! It may automatically stack them in camera. I have never used Gimp.
My canon automatically stacks them. from there I use Lightroom. When I do manually stack them I use Photomatix. That what I used back in the day. I still have it and use it occasionally. Topaz Adjust is fast and easy to give any photo HDR. I mostly use that. Topaz Studio 2 is amazing at cleaning up noise. Fast!
Ive been paying the subscription to photoshop but hardly ever use it. Back in the day there was a filter called LucisArt. It was amazing for simple HDR. Its not around, and its to big of a pain to use my old copy of photoshop. Abobe has made it that way. they want your monthly fee.
No luck fly fishing on the river but got lucky at the pond and got a bass. I let it go to fight another day. My first catch of the year and I got my 6 month milestone badge today on ST so I’m happy.
Unfortunately mosquito’s are everywhere, but definitely not as bad here in Tucson as some other places I’ve lived. Its gonna be a big change moving to this area! Good luck with the move, hope everything goes smoothly!