I recently started to use the circular needles that are used most often in making afghans. I dreaded trying to use them since I am still new at knitting. Surprisingly I found that I really enjoy using the circular needles. Since I just started using a circular needle I am only making a baby blanket as a starter.
When you go to cast on with a circular needle it could be a hassle if you are using the long-tail cast on. My mother-in-law told me the trick to using this cast on is to use the straight needles to cast on and then once started knit with the circular needles. As soon as my afghan is done I will post pictures.