arduino controlled RGB led strip

does anyone has any recommendation for an Arduino controlled RGB led strip

It depends on what you want. There are "basic" RGB strips powered/driven from 12V, and for those you need a MOSFET driver for each color. Then, there are addressable LED strips that use separate power (usually 5V) and only require some low power serial control signals from the Arduino.

[u]Adafruit[/u] has lots of LED strips and related stuff and tutorials (not just for the Arduino).