Airconditioning Brisbane West

Can anyone recommend a reliable installer of split systems for Western suburbs Brisbane? Yes there are the Yellow Pages, but who know what some are like? If there are any to avoid pls PM me. Thanks
I second fisherman's request if anyone knows of an installer in Ipswich for split system air cons I would love to find out. One that will install units, vacuum test and do it all thorougly (but that is willing to install mitsubishi units bought elsewhere :( ).