Another config that hits all the gear mentioned above along with a couple others:
I have 7 PCR1000s at the moment. 6 operational and 1 in the repair queue. Coincidentally, there are 6 PCs in the monitoring setup that are dedicated to analog scanner/receiver control. Each runs Linux as the host O/S, VirtualBox as the hypervisor and a variety of guests: FreeDOS, XP Pro, Win7 Pro and Win10 Pro. The configurations of these systems are very similar if not identical; host names and IP addresses are the main differences.
Hardware was designed to be portable and pluggable. Each host has an Optocom connected to one serial port and a PCR-1000 connected to the other. An R-7000 is connected via CI-V cabling to the Optocom. A modified serial cable facilitates Squelch Detect and the radio end is plugged into the R-7000's Tape relay control jack. (This arrangement also works when using an R-71 under CI-V control.)
WinXP or Win7 VMs host Spectrum Commander IX, and each Optocom/R-7000 pair is configured for handoff scanning or searching: The Optocom finds things of interest then the Icom listens. Each PCR-1000 also listens to a dedicated ham band and the various points of interest within. I specifically chose them for this role because they're all-mode capable: The SSB, AM, FM simplex calling/working frequencies and repeater outputs can all be scanned for activity.
Each host can also run FreeDOS/ProbeV7 or Probe1K if I want to control the receivers in DOS mode. The WinXP VM also has the Icom PCR-1000 software, ScanCAT and other packages which support the attached receivers.
Two more PCs of note: They are higher horsepower than the others and have Win10 Pro guests. ProScan is used to control 1ea BCT-15X and BCD-996XT. At some point I'll add a 996P2 w/ upgrades to each. These systems have Icom CT-17s or Optolinx interfaces attached, and each has an IC-751A/R-71A pair connected for digital modes monitoring, ham usage, what have you.
All systems can run flrig/fldigi, wsjtx and similar software natively. Fun Fact: flrig fully supports the PCR-1000 including the DSP module code. I did a lot of that. Next on the driver list is Optocom and OS-456/535 support.