I'm thinking about beagles tonight, for reasons I can't fathom, but little 12-inch tricolored, blanket-back beagles are on my mind.
Beagles are susceptible to problems, but no so much that you've got to worry about them, they're fairly durable little dogs. Keep the bloodlines clean, don't interbreed them and you don't have to worry about hip dysplasia. Keep the shots current and give them a worming twice a year, you're pretty much done. Like with all dogs, heart-worm treatment and inoculation against parvo virus is a great idea.
Beagles are great little dogs, and I'm thinking about beagles tonight.