SG-2440 Firewall options

[wifiuk]

I like the SG-2440 PfSense firewall.

I currently use pfSense in a VM on my ESXi host, no problems with it at all.

But is there somewhere i can get a SG-2440 for cheap, i cant spend £500 on a firewall for my home, wife would go mad!

The reason i have pfSense its its opensource ness and price tag :)

If i cant find one cheap, i would like to build something similar, im trying to reduce my power consumption as best i can and i like the look of the SG-2440.

Any ideas ?