Thanks, Dfhaleycko! I actually already own a copy of Jim's book. I've read it once and intend to read it again. Dealing with the room will be my next step. I think the room is actually quite good as it is. It's carpeted, the ceiling isn't smooth so it also absorbs/diffracts sound waves, and there are a few pieces of furniture as well. Adding some well-placed treatments, however, may help the cause.
Computer audio - this is another option. I am not bad with computers, but I still like physical media and just haven't felt the urge to change that. So this isn't something I plan to do anytime soon, but it is the future so one day I will probably make the leap (or maybe I'll just buy the cheap physical media that everyone has left behind!). I admit it can be very cool to just flip through your albums on a tablet and choose what you want to hear in seconds without getting up.