I've always thought the cheap Tontine pillows weren't the best quality or the most comfortable, so I've tried various ones out at Myer and David Jones and hoped there was a sale on their vastly overpriced pillow brands (40% off seems to be the norm.)
Any tips for buying online / getting ones that are just right?
Try a latex pillow. They tend to be comfortable and you'll probably feel less ripped off if you get it on sale. Myer or Pillow Talk sales seems to be the go but if you can find it online cheaper … then the lower is the go'er.
edit: Have you tried sleeping without a pillow? Did me a world of good.