Ari's Planet

English-language books: yes
Nice people: yes
Good food: yes
Burn your mouth off food: yes

Pyrethrin spray for clothes, netting: no
Mosquito coils, e.g., d-alethrin: yes
Mosquito net: crappy ones yes, nice ones resold by tourists in khao san bangkok
Bug spray, various kinds: yes
Bug repellent, deet ~50%: yes
Malarone, antimalarial (prophylaxis, field treatment): no
Doxycycline, antibiotic/antimalarial: yes
Lamisil cream, fungal infections: yes, hopefully not counterfit crap
Any toiletry under the sun: yes

Camera gear: more expensive than usa, easy to find small doodads like crappy uv filters
Computer gear: I think more expensive than usa

Good backpacks: store at north edge of night bazaar in chang mai
Cheap backpacks: all over the place, ~600B
Good sandals: no?