colortrend all the way,for the exterior,keep away from sandtex,used to be fantastic paint a few years ago,but its quality isnt anything like it used to be,i would recomened not spending a fortune on colortrend paint for the inside,because you will get settlement cracks in most of your house for the first year or two,which will need to be filled and repainted,i would paint the house a neutral colour throughout first, in maybe a dulux,and after a few years when all the cracks are fixed then you can repaint with colortrend...