just came back from bangkok stayed 5d4n at HI-Sukhumvit hostel (Youth International Hostel) at Sukhumvit soi 38 near Thong Lor BTS, its really cool. Twin room with aircon (shared bathroom- really clean & comfortable) only for rm85/nite. easy xcess to 7-Eleven, post off, food stall, massage centre & skytrain. highly recommended!