Welcome aboard!
It's a great time to be a budget audiophile. Computers via stored memory or online services have replaced CD players, tape decks, and turntables. DACs are getting cheaper/better all the time. And lots of options exist to with headphones (with preamp, headphone amp, or combinations thereof); or speakers again with lots of options (active desktop monitor, add a sub later or integrated amp/in-room speakers or all-in-one DAC/integrated/in-room speakers). Prices for amps/speakers have remained flat over your 15 years away while quality has gone up.