Later this month I'm fortunate to be spending four full days in Bangkok. I'll arrive on a Thursday and depart the following Tuesday, and over the weekend I plan to revisit the above-mentioned three markets, which I last saw in 2006. I've looked over recent posts on Chowhound as well as Curt the Soi Hound's blog Bangkok Cheap Eats, but I'd appreciate additional intel. Specifically, I'd like a recommendation for the best day to visit Khlong Toey, and I'd welcome news about any interesting new stalls or seasonal items that I should look for. Thanks to all in advance.