I don't know if you are familiar with Rob Chappers videos on Youtube but he works for a company called Andertons.
http://www.andertons.co.uk/
Definitely a great online guitar store AND guitar shop which you can visit. When you ask people about their experience with this website they all seem to love it.
I myself live in the Netherlands and have had multible purchases with Rockpalace in The Hague and Music Store (which is located in Germany).
I recommend both.
Both are really great websites and also have shops which you can visit.
Check them out: http://www.rockpalace.com/
http://www.musicstore.de/en_EN/EUR
Hope that helps.
JJ