Just so you all know, Tamlin and I live ~125 mile apart. He gets Lake Ontario and I get Lake Erie for winter fun! What he can do outside is what I can do outside.
Modifications will be made for next year. I stumbled upon a nursery wholesaler while looking for more 2" pots, 6 months ago. When I asked why I needed them I told her that I grow carnivorous plants. Instead of the usual ,"you grow what?" response, it sparked an interest and a query about getting her a "cobra plant". From there I bring her extra sundews and butterworts and she supplies me with pots. She is also willing to house my temperates for the winter, in what would be just above freezing temps. All that is to say is that I can get any shape and sized pots I need.
I plan to catalogue which ones struggle through the summer. Marius: I have no fan blowing on the plants. They're just on a 4-tier grow rack, totally exposed to the air. I'm sure the temp rises a little in the afternoon, but not a whole lot. The closest the rack is to the window is ~9" away. The other factor limiting light and temperature, aside from AC, is that a couple months on either side of the summer solstice the sun is too vertical to shine in, being cut off by the roof gutters, at least on the top 2 racks. Even the bottom 2 racks it gets cut off past the first 2 rows. That's why I need the artificial lighting. I also have the fixtures tilted so it doesn't further cut off what shines through the glass doors. I'll also skip the top-watering for them and reserve that for something like D. aliciae.
Tamlin: which ones gave you the most trouble? I can say that pulchella, omissa, patens, badgerup, carburup, manni, dischrosepala, palaceae, helods, and sargenti seem to be the most easy-going. D. scorpioides and androsacea can be a small problem but not insurmountable.
Josh: Whaddya think?