Ok, went to look for an apartment today. I stick to my previous comment "apartment hunting can be a bitch in BKK."
1. Saw the Thonglor area during the day and to be honest it does not look that great and I don't really see any point in paying the extra bucks for an apartment in that area. The prices shoot up like crazy in that area. After 1 and half hours of roaming around I found only one place that was somewhat in my budget.
http://www.nantrahotels.com
They charge 20,000 Per month which includes cleaning everyday, breakfast, water, electricity and internet. Its not a bad deal but the room was really small.
I saw other areas in Thonglor and most cater to the luxury apartments crowd. Thonglor IMO is not the area to look for a cheap place. There will be a few expceptions but you need a lot of luck to find these places.
2. Went to the Promphong road which is close to Thonglor. This road is much more upper class than Thonglor and finding a cheap apartment in this area can be harder than finding one in Thonglor. Just to give you an idea, I walked into 2 buildings
http://www.baanjamjuree.com/link.html
You can't get an apartment here unless you sign a 12 month contract and the rate was 80,000 Baht for 2 BR.
http://www.asiarooms.com/en/thailand/ban..._sira.html
They charge 21,000 for a 30 sqm studio.
I got really frustrated and started stopping expats on the road to ask for advise and one guy recommended a place for 7000 baht per month, I BR, it was a complete shithole and was around 6 kms from the Thong lo station.
2, Silom area, I was deceived into believing that the Sathorn and Silom areas are close to each other but they are 5-6 metro stations apart. Don't trust the maps that these apartment owners draw. On the map it seems as if the distance between the apartment and the metro station is only 2 blocks but in reality its around 10 blocks.
Sathorn area, very clean, probably the cleanest area in Bangkok, and high rise buildings all over. It felt like la defense of paris minus all the people in suits. I would have stayed there if it wasnt that far away. It takes 30 mintues to get to Thong lo from Sathorn and the metro ride costs 40 baht one way.
http://www.skgrand.com
You will get a 43 sq mtr studio for 14000 baht in this building.
I couldn't go to the Silom area because it started raining. I will go there tomorrow if my feet are up to it.
As of now, I would say that you should look for apartments around the on nut station. I walked around in that area in my first week. Its clean and has a very american feel to it - big car showrooms and super stores. Its definitely not the most glamorous area in BKK but it provides good connectivity to Thong lo and other posh areas in BKK.