Hello

I am thinking of buying a Casio Keyboard from
www.music123.com

Is that website reliable ?
I hope it is.

I'd thank you here for helping me (:
Or if you know some other trusted website to buy instruments from, please let me know.

I would say that they should probably be a fine experience.
They have been around for some time.

On a par with:
http://www.wwbw.com/Casio,Keyboards---MIDI.wwbw
or
http://www.guitarcenter.com/Casio.gc