I just KNEW Plymouth Encore rang a bell, so I have been rooting through my stash, and there it is.
I have some my son wants knitting into a Dr Who scarf, we got it from the USA.
It is as I thought, a tiny bit thicker than a DK, and not quite a chunky.
Aran should be fine. James C Brett make some nice baby/kiddy yarns.
For bargain price wools, check out Kemps Wool Shop -
http://www.kempswoolshop.com/ and Deramores -
http://www.deramores.com/ - hope you find some you like.