I haven't bought my circular set yet, but was wondering if the work
> turns or do you just keep bringing the work up to the other needle > back and forth. >
I may be misinterpreting your question, but you knit in a circle so there is never a turn. Unless you are using two circulars as straight needles of course.
Anyway, I knitted a scarf, several actually, using the garter stitch.
> Now I'm trying to figure out which cast on will give the least curl
> and I also think my tension may be too tight. =A0I've been trying
> different types of free tail CO methods. =A0
>
I like the knitted CO. You start with a loop on the left needle, pick up a second stitch through it, and then slide the second stitch over to the left needle. Pick up yarn from between the two loops for a third stitch, slide to left needle, and so on.
I have been working on the same afghans forever, and have made a premature new year's resolution to finish at least one in next year. I've been knitting all afternoon on the Fassett afghan between interruptions from the cat. Dora