could you tell me a little bit about your experience getting an assistant? how many people did you interview? i know some people in bangkok and they say the hardest thing is getting somebody with a good grasp of english. though, i posted an ad and had one person from england one person from australia apply (ladies) at $600 a month. these people wouldn't know thai, so that would be a negative. there were a few 50% thai 50% americans that had lived in america, but their english was somewhat flawed.
i was told that any girl graduating from a good university would be very happy with a job that paid $600. since i'm not going to have them run any of my current business operations, it's not like they need to be a genius. i haven't actually interviewed anybody since i'm not even there. i could find out very fast that you're right. i did get a lot of applications at that price range though.
$600 is a pretty high salary for a recent grad here, assuming they're from an average-good university and not Chula/somewhere else prestigious. You shouldn't have any trouble finding an English speaker at that rate, although they're not going to be able to write a great essay or anything like that.
I live in Bangkok and have 2 part time employees. If you want a simple arrangement that covers all your needs, hire a cheap Thai employee with reasonable English for $350/month and spend the rest outsourcing to the Philippines. Bangkok is very Westernized, but there are some major cultural differences that don't really become apparent until you try and manage staff. A part time Filipino designer shouldn't run more than $300 a month, and will save you a lot of frustration if you're not accustomed to managing Thai staff.