Any Suggestions for future water cooling?

At the moment i don't have the money to buy anything for water cooling but in the future i would like to. Can you guys suggest what would be the best for me, I want something that is easy to install, has a reservoir, and is reliable.

Thnx in advance for your advice.

My case
ASPIRE X-CRUISE

LookHERE some good kits with everything you need so you don't have to run all over getting stuff.