Looking for rainbow progression of color

can anyone recomend a good yarn with that kind of progression of colors
I have been using DMC creative world Tradition type crochette thread
it looks good, but I need a Yarn, not a thread
these “0” needles are makikng my head hurt
I can use size 4s or larger, but someone save me from those tiny ones

ecb

What kind of fiber content are you looking for? Fingering and bigger in weight?

Fingering or bigger
So that proper needles would be 4 or larger
so light worsted is good
Natural Animal fibers are prefered

Sorry, I guess I did not think through my Post before I wrote the whole thing out

Lorna’s Laces has a “rainbow” and it’s a real true, bright and bold rainbow. I just bought a hank of the superwash fingering because it was lying there in all its rainbowy goodness and I couldn’t resist. It comes in all the different weights she has…

http://www.lornaslaces.net/yarns.asp The yarns

http://www.lornaslaces.net/colors.asp The colors, Rainbow is on about the fourth page of multis, bottom right.

Wish it wasn’t so pricey.

Here’s a good picture…

http://cgi.ebay.com/Lornas-Laces-Shepherd-Sock-Yarn-601-Rainbow-2sk_W0QQitemZ8269951885QQcategoryZ36599QQrdZ1QQcmdZViewItem

here’s a pic of the yarn i just bought on Ebay. if you follow from right to left and back it looks like it is in ROY G. BIV order. Not sure if they always follow the pattern completely correct though since it is the first time i bought this colorway.