Hi! Where is "over here"? Are you in the UK by any chance?
What I will say is this, be careful where you buy the yarns or who you take advice from. In John Lewis in Oxford Street there are various staff there - I've seen two of them actually knitting and would ask them their advice over others I've not seen actually knit.
The Rowan Kid Classic is quite lightweight. I know this because I was looking yesterday and ended up buying 2 balls to do a bag from the book "25 bags to knit"
I was looking at the yarn and realised that it just wasn't a heavy weight yarn at all. The pattern in the book calls for knitting 2 strands together. I'd definately not put Rowan's Kid Classic at Aran weight!
Yesterday, the ladies in JL Ox Street tried to palm me off with some yorkshire tweed chunky - Luckily I dont have my clogs pattern yet so wasn't 100% sure of the yarn amounts required. I looked at it and it just didn't feel like Aran to me either. My mother used to knit us all Aran Jumpers when we were kids so I have a small idea of how Aran wool should be.
They showed me some items felted using the tweed, but either they didn't felt them very well or the stuff itself didn't felt too well. I thought (from reading all about felting) that the stitches shouldn't show. Using that, and felting it - the items they had on display showed the stitches.
I left there a bit bemused but read someone here saying they had some merino which is good for felting.
You could try some of the Patons wools, Sirdar is very expensive IMO and I saw other yarns in the store yesterday that were as nice and not as expensive.
Also, they (John Lewis) have started carrying Noro yarns. I understand these are pretty good for felting too and the ones I saw were quite thick looking.