I was checking out the sundew section of Bob Z's photo finder and found a ton of species that I've never even heard of, particularly south american species. Here are some of the better ones I found.
Drosera arenicola, from South Venezuela.
Drosera browniana, from Australia:
Drosera camporupestris from SE brazil. Love the look of this species, unfortunately they don't seem to be available in the US...
Drosera cendeensis from Venezuela. Anyone know if this is in cultivation? Those long leaf bases are amazing!
Drosera chrysolepis from Brazil. Similar to camporupteris, but with a stem!
Drosera elongata, from Angola in Africa.
Drosera erythrogyne, from Western Australia. Climbing tuberous dew on steroids.
Drosera flexicaulis from Morro de Lopollo. Love the name, love the dew!
Drosera graniticola from SW australia. Check out those flowers!
Drosera grievei from Western Australia. A nice looking pygmy.
Drosera hartmeyerorum from Australia. Kinda like a red byblis.
Drosera hirticalyx from Venezuela.
Drosera huegelii from Australia.
Drosera intricata from SW Australia.
Drosera parvula from Western Australia.
I bet there are tons more too... I only got to the P's. I'd be interested to know more about these species such as growing conditions, etc. if anyone grows them.