Motherboard - ASUS P5QC, old got it at the end of 2009, upgrading soon but still runs decently. Was supposed to upgrade last month but I got a faulty Motherboard and they wouldn't replace/exchange it so that was £91 down the drain. So now waiting for a £116 ASUS one to arrive.
RAM - 8GB DDR3 1066Mhz, using this in my system now. Used to have 4GB DDR2.
Processor - Intel Core 2 Duo E7400 2.80GHz, still running good at the moment. Will be upgrading to an Intel i5 2500k 3.30GHz when I have the (2nd) new Motherboard.
Graphics - Nvidia 9600GT, still running good can run most of my games on medium-high setting decently well. Have a Nvidia GTX 560 ti in my draw ready for when I upgrade.
Case - Coolermaster Storm: Scout, pretty good case, will be sticking with this after I upgrade.
Hard drives - 2x 500GB Western Digital, have served me well the last two years. I may get an SSD at some point though.