A quick search on 'PRICERUNNER' website showed 2 retailers selling this motherboard.
CTI Direct in Oldham, and ExtremePC's somewhere down south.
I will leave you to decide if £130 is a good price, as I have no experience of these particular boards!
There are a few retailers still selling ASROCK 939 boards, but they may not be up to the same specs as the Gigabyte.
Gibbo