Bit cheaper from Aria
http://www.aria.co.uk/Products/Compo...roductId=40306
According to the Q+A this one doesn`t need connecting to the power supply as it doesn`t take much juice.
http://www.aria.co.uk/Products/Compo...age=2&rqcType=
Zing will know if it`s much different performance/quality wise, being XFX DDR2. Price is half right