Locks that work

Hi lfgss community :)

Whoever made this informative thread, I thank you and the people who helped you from the bottom of my heart. I've spent countless hours online reading about bicycle security, locking techniques and possible good locks, this collection of working locks is by far the best I've come across.

I'm a student living in Estonia and last year, bought a city-cruiser type of bicycle that (when the winter is gone) I'll be using to travel between home > university, different lectures etc.

I am aware that there is no fool-proof locking method, but as I am trying to make stealing my bicycle as hard as possible, within a budget of lets say... 200€, I planned on using a combination of a alarmed U-lock + cable lock as secondary lock (read somewhere that using different types of locks gives a better chance of not being a victim of theft).

My question is:

1. would you recommend this setup for me or should I try something else?
   
2. any idea where I can buy a Xena xul series (alarmed u-lock) in Europe (online store hopefully)? I've contacted their reseller in Estonia, who seems to be out of business and the company xena itself has not replied my email asking about other resellers.
   
3. within a budget of 200€ roughly... which locking solution would you recommend?
   
   

Thank you and have a awesome and theftfree cycling experience! :)
J