Well i guess if you've never seen a rootbound plant.....maybe google images? When you transplanted you would have been able to tell by looking at it. (the root ball I mean). Doesn't matter much now, i was just curious and some of the others probably were too. if it was terribly root bound you could have performed some surgery on it, but thats getting a little advanced lol.
Anyway I've seen the pics in your album, and what i saw was heat stressed plants that otherwise looked very healthy. iSo get some thermometers in there with your plants. And i mean SOME. or at least take your temp readings from different locations. you WILL have different temps in different places. the most important place is your "canopy" or tops of your plants. this is where the heat will be highest and what you need to have below 86f or 30c.
So like you said give em a week (the transplant will stress them some and they'll likely stall for a few days) and see how they're doing. In the mean time check out Superthrive. Good stuff for reducing stress from things like transplants. Peace.