I have, as my sig suggests, an ATX-sized motherboard (MSI p67-gd53) paired with a 2500K, in a bloody great big Coolermaster case. I'd like a mATX-sized case... The simplest solutions seem to me: 1. Replace ATX motherboard with mATX mobo. Cost: £75-150 2. Replace current mobo and CPU with new generation equivalents. Cost: ~£300 However, there is negligible performance benefit to be gained from buying an i5-4960K and it seems wasteful to buy an EOL z68/z77 mATX mobo. So a third option presents itself: 3. Keep current hardware, replace case with smaller case. Are there any suggestions for a small/very small case which can fit an ATX motherboard? Edit: 4. I suppose selling current mobo/cpu would net me about £120, so that would offset some of the cost of option 2. Still seems wasteful!