My computer specs (If any missed, ask):
RAM / Physical Memory - 8GB (I currently have 8191MB, and have 4880MB free if that means anything)
Processor / CPU - AMD Athlon(tm) II X3 450 Processor, 3200 MHz currently at 31 degrees Celsius.
Graphics card / Video adapter - NVIDIA GeForce GT 220
Windows 7 Home premium home edition
Disk Drive - WDC WD3200AAKS-75B3A0 ATA Device (298 GB, IDE) Currently at 38 degrees Celsius

Does network adapter or anything else really count? Anything else needed to know?
Is there anything I need to improve on for better gaming?
Oh, and system type is 64-bit.
CPU voltage is 1.1500. I honestly wasn't sure quite how to check power supply voltage, sorry.