HP DL380 G7 with 10TB 2.5" drives & an Iomega PX4-300R NAS with 12 TB 3.5" drives. The HP runs all my 'arrs as well as does any coding work & acts as preliminary storage. Drives have cost me more than the server & NAS units.

Well worth it. For the software and the help. I saved $$$ uploading fuel injector profiles for a Cat engine in a Freightliner truck & programming some features into an International Truck. The guys there are friendly & helpful.