Thanks! Well, for the moment I think I'm gonna stick to the straight needles before I try the circular needles (which I had never seen ever before until a few days ago!).
This particular pattern says that I need a US 8 DPNs or circular needle of 24'', I guess this means i can try to knit them with straight needles, but then I will have to sew them together?
It's a bit dumb question, I know, but...