I've taken the Hard Drive and Graphics Card from this PC to go in my new machine but what's left is still a very solid base. Add in a hard drive and any half decent graphics card and you have a great gaming PC. Never overclocked but the 750's are usually pretty decent so room to push it further if you wanted. Ran it through 24 hours of Prime95 testing prior to taking the drive/card out so it's a very stable build.

Intel Core i5 750 2.66GHz
Gigabyte GA-P55-USB3 Motherboard (Intel P55 Chipset Socket 1156 Support Core i5 And i7 Processors ATX 4x DDR3-2000 Max 16GB 1 x PCI-E x16 GB USB3)
Aywun (HP-1216) Aywun RADI A1-V10 CPU Cooler
8GB RAM
Asus (DRW-24B1LT/B+W/ASUS) Lightscribe SATA 24xDVDRW 
Antec (AT-300B) Three Hundred Black Gaming Case
Enermax (ELT620AWT-ECOII) 620W PSU

I'm in the Christchurch area so would prefer to deliver/meet up locally.

Not really sure on price, it has to go as I don't have the room for another PC so make an offer :)