Hey..
You know too.. I saw a post by Francine here about using weights for CK, and I purchased some "weighted hands" at Title9 Boxing on the internet. They are two pounds each but are also available in 1 pound and they go on like gloves. This might work, and you would have them for CK. They were only 9.99!! You might want to get the one pounders though, as I am wondering whether the two pounders will be safe for the quick punching in CK....
Don't get the one pound increment dumbells. If you stick with Cathe, you will quickly outgrow those. Whatever you do, get something to add to your poundages. Like even now, I do squats with 20lb. dumbells, but I don't want to automatically go up to 25lbs, which, when the poundages get heavier, they only come in 5 lb. increments. So I will either get the PLATEMATES or use my weighted hands for the added resistance. I was going to get the platemates, but now that I think about it...well, I'll probably just get both. They also make weighted gloves on that same website, which, again, now that I think about it, would probably be better for weight training. I LOVE my gloves.