I groom my papillon/poodle mix. As far as clippers, talk to groomers in your area and see where you can buy a refurbished pair of clippers.
I've dated 2 groomers, and they rarely buy clippers new. They always buy them refurbed. Clippers wear out, and need to be fixed up. If you're just grooming your personal dogs, and not doing it for the money, a refurbed pair of clippers should outlast the life of your dog, might have to go in for basic maintenance (blade sharpening, etc).
As far as dogs that are easy to groom, short answer, it depends on the dog. There is no breed standard guaranteeing a dog that will be easy to groom. Talk to the groomers you've used in the past and ask how your dogs behave during the grooming process.
ETA: Feel free to IM me if this thread doesn't get active. I met the crazy in those groomers because I worked in a grooming salon. I did learn a lot from working there though, so if your questions aren't all met, I might be able to add more insight.