The budget is quite large for the task. There's little reason to invest in high specs for your workload unless you see yourself going deep into VMs. If buying n

The budget is quite large for the task. There's little reason to invest in high specs for your workload unless you see yourself going deep into VMs. If buying new, prebuilts basically offer a premium for convenience, and usually with less repairability(proprietary boards and cases tend to resist modification). Used and refurbished prebuilts can be fine with a fresh power supply. To set a performance target, I suggest starting with a search for midrange gaming builds, then reduce the graphics spec and add more emphasis on memory size, fast storage, and core counts. Anything leftover in the budget is worth considering for peripherals(monitor and keyboard), ergonomics(monitor stands or arm mounts, chairs, etc., mice alternatives that you can swap to to reduce RSI, macro keypads to ease boilerplate data entry), and subscription services.