If you want some further opinion then I would say this.
1. Go for a known brand like Philips, Osram etc if you can afford to or buy 1 cheapo Chinese lamp and try it. I have had good results with some of the cheaper 12v MR16 LED but less so with the 240v GU10s. I have had some cheapo ones go bang in a very spectacular way. Philips for me has always had the best light output, colour temperature and dimming curve. Which leads to..
2. Use a good quality dimmer designed for low load LED fittings, you will experience flicker and stepped dimming and worse otherwise.
3. Be careful of colour temperature, please don't go for cool white unless you really need to provide bright light. It will make the room look sterile.
4. Don't believe the wattage and light output figures, I have seen bright 4w lamps and dull 9w lamps. Also be aware of how inefficient the drivers can be.
Part of my job is to be a lighting designer/integrator doing things like this http://www.flickr.com/photos/technophobe/6877270287/in/set-72157629320303549