dubia might produce small pitchers, but it's a hellava viner...
N. argentii is not the easier grower, so keep that in mind. It's a rewarding one to grow, though. Here's a list for you;
Highland
-argentii
-dubia
-glabrata
-jamban
-jaquelineae
-tenuis
-diatas
-talangensis
-alba
Lowland
-bellii
-campanulata
-copelandii
-and a speckled form on alata that has pitchers that are only 2" tall.
Exactly the kind of responses i was looking for, thanks guys. Mass, I'm afraid living in Britain and having no fixed income means overseas trading is not an option for me ^^ nice of you to offer though!