I have a small setup at home: A desktop PC with 32 GB RAM running Cubase Pro 9.5. 2 monitor screens: 1 20-inch computer monitor and 1 32-inch digital TV that I use for a monitor. The TV comes in handy for editing because I can see the wave file in fine detail. I own 5 guitars, but record mainly with only two of them. For acoustics I use a Fender acoustic electric recorded through the direct inputs. For electric guitar I use a Parker P38. For keyboard work I use an Alesis Q88 MIDI controller keyboard. I have several mics, but my main goto mic for vocals is Pacific Pro Audio PPA-1 large diaphragm condenser. When I use a microphone on acoustic guitar I usually use a Nady CM90 small diaphragm condenser. My audio interface is a Steinberg UR44. My main headphones for mixing are Sennheiser 280 pros. For speakers I use Altec Lansing computer speakers with sub woofer.
My setup at work is similar, but I use one video monitor, Tascam headphones, Larger speakers and a Steinberg UR22 interface. The room at work is treated with acoustic foam to avoid standing waves. My home studio is not treated, but I use obstructions to avoid parallel walls.