I totally agree with John you can not resist the dark side of the force I booted out Windows 4 years ago and have not looked back Macs every where iMac 24" main desktop for home office ,Mac Book Pro which I am typing on now, iMac 20" in the Observatory running every thing ,G11 ,Gem2 , PHD Guiding ,ASI1600MC ,Sbig STI guide camera , Nebulosity 4 , Skysafari pro and all in harmony have not had a issue for well 4 years .
cheers Pete