From what i heard from friends, these are awesome deals packaged by Nexus Holidays. A few other friends have been with them but with other tours. The main differences are rip-off "shopping", but if your vigilant about your budget, you can ignore most of the crap. Sadly, they speak chinese-only on tour which is why this is in forums. I think its Cantonese.
This is their Bangkok package for $199. They previously had highly popular tours in china for $99.
Hotels looks good (4 stars).
Good attractions i.e visit to elephant training park.
BAD: Tour is in Canto. Fine by me, not so for others.
Plane tickets needs to be booked.
Off-Peak
GOOD: CHEAP.
Pretty much hassle-free.
PDF
http://www.nexusholidays.com.au/files/SP_Bangkok_Pattaya_6_D…
chrome can't translate pdfs :(