I am the Kat that Walks By Itself

I actually prefer circulars and always use them whether the project is flat or round. However big circs are a bit harder because you have to get the stitches back onto the needles from the thin cable, so maybe get some cheap thick plastics from a yarn shop? I have some bulky yarn for a vest I want to knit some day and I'll probably go with straight needles for that.

[Edit] Oh, and splitty yarns are just awful not matter how experienced you are! Yarns with a high twist are so much easier.