I'm about to start on a 4-poster for myself having made 5 previous ones for other people over the years. Mostly I have used hardwoods but as my bedroom has a lot of pine - floor, windowsills, built-in wardrobes etc - I thought a softwood would be a better fit. I'm not keen to use knotty pine from the local builder's merchants and would prefer something with a straighter grain. Any suggestions?