Wesx,
If your Sarracenia grow well, so should the Drosera, but you must take care to bring them into harsher conditions slowly. Screen the sun using white plastic garbage bags for a 1 or 2 weeks. Be observant, and make sure they are in tray water. Full morning sun is ok, but later in the day at first some screening will be needed. Then, late afternoon and evening sun is good without the cover. I think you get the idea. Broken sunlight is also ok. Most of the Drosera seed you have should do well like this.
As for the Nepenthes, I am not very skilled with the genus, and have only a passing interest in them. Mine are in a tank which gets light but no direct sun. I always lay my tanks on the front so the top is towards me, and this is covered with a sheet of plastic. I have 6 flourescent tubes like I described before sitting on the glass. It gets too hot in summer, but the rest of the year works well. The climate is cool here with a good nightime drop, which the highland species need. I spray the plants on hot days, and if it gets too hot I ventilate the tank for awhile. My results are not great: I just dont have the space to grow them well.
Even a thin sheet of plastic food wrap cuts out much of the spectrum the plants need! It is best to grow them in lower humidity, and directly under the light tubes (as close as possible). As I said, if Sarracenia and Dionaea are growing well, so will most Drosera. It may take time and effort to grow plants used to a terrarium out in the open, but if you go slowly, each new leaf will be more adjusted, and healthier.
I hope this helps you. I used to grow everything in terraria, but find this approach produces the best plants. An advantage of starting fresh from seed is the plants are more naturally acclimated to your own unique conditions.
Keep in mind that different climates may produce different results. I think the most important thing will be to gradually adjust the plants to your natural conditions. Once you have done this, it will be much easier to provide enough light for good growth and typical color.