Amstrad PC 20386, 20MHz, 4MB RAM, 65MB HDD
Exactly this setup with the 5.25 fdd along side it, piggy back 14" monitor and the odd looking mouse:
I had the exact same looking system, except mine was the earlier PC 2086 model, only a 8MHz CPU with 640KB and mine had been upgraded with a 27MB HDD and 1.44MB floppy drive in the right bay to accompany the standard 740KB floppy in the left bay.