The Conrad is very nice, no doubt about it! Although I think the Hilton is more of a family hotel, and nicer being on the river.
Will be arriving BKK Hilton on Wednesday on our way to coughet (surprise trip .... for our anniversary also, telling my wife tonight) and on the way back! Looking forward to the stays there, it is always very comfortable and pleasant.
If you are looking for a cheap fine dining experience in Bangkok, I cannot recommend Le Normandie restaurant at the famous Mandarin Oriental Hotel enough, fantastic location, view and atmosphere, and the best bit is weekday lunch is only 1050THB for a truly world class 3 course meal, which is very cheap for what you get. Only ever had lunch here (great to take clients), and I would expect dinner would be expensive.
There is also a day trip I would highly recommend, that might educate your kids if they are of suitable age. Take a trip up to Kanchanaburi (Bridge over the river Kwai), there is a huge memorial garden for Australian diggers that we found quite moving, war museums and the bridge itself. Well worth it IMHO.
Good luck with it, we will all be able to help you fill in your few days there!!
