Don't come into this room too often but the tuberous Drosera title caught my eye.
I am from Perth in Western Australia which is where many of the tuberous Drosera originate. They were my first CP's and the ones that got me into CP's in the first place.
Yep, I'm afraid I used to collect them directly from the wild but if it's any consolation I grew up in an area where new houses were being built all around us and I collected the Drosera from land that had been cleared for housing. They would have been built over anyway. There are still MANY places like that in Perth and it is easy to collect plants that would otherwise be wasted.
Tuberous Drosera are basically the opposite of your northern Sarracenia. Our summers are VERY hot, sometimes 40C+ and DRY DRY DRY. Winter on the other hand is often sunny but cooler with plenty of rain. Martin's 10-15C is about right. The Drosera go dormant during the hot summer and do all their growing in the winter.
The soil is very sandy, some peat, and very very well drained. None of them will like sitting in water. Cacti grow really well in sand from around Perth if that helps. There is a big dune formation that runs under the entire region and the sand tends to be white and silica based. My house was close to a lake called Gnangarra which almost looked like the ocean as the sand is all so white (and the water's quite salty). I used to see heaps of drosera right up to the shoreline in Winter.
In the same area as the tuberous Drosera you can usually find many others all mixed, rosettes and pygmies as well as Cephalotus, down south.
Allan Lowrie sells all kinds of Drosera tubers and he sends overseas. I don't have his address handy (he is not on the net! but if you want, post again and I'll have a look for it.
Hope this helps, fatboy.
PS Martin I don't know what you do for a living but you should seriously consider professional photography