ARM Development

Does anyone here have any expeirence with ARM development? What toolchain do you use and controller would you recommend to a beginner?

Hi,

I am working on ARM Cortex M3 for one year. I am using stm32 series of controllers. I use KEIL MDK and Attolic for this purpose. In my opinion, KEIL is leading in this field. It comes up with an excellent RTOS and Simulator. Moreover, KEIL has an active forum as well.