It's not late and in my opinion might it will never be late (maybe I'll explain my opinion further in another post). But you'll need to build your own mining rig witch requires certain amount knowledge. Also scrypt mining is much different than how the bitcoin mining works. By breaking it down you'll see that currently the most efficient way to mine is using a graphics card; graphics cards offer you a nice hashrate but still consume a lot of energy and produce much of heat since they weren't originally designed for running 24/7 in oc settings for solving computations such as these litecoin (or scrypt coins in general) mining requires.
I have some basic knowlege regarding building computer/etc so it shouldn't be hard. I will also do some research which cards and mobo I should use. Well even if it won't be profitable, I will still have cards and hardware I can sell, right?
How long is a GPU lifespan when it runs 24/7? Will it work for like 3 months or should I expect some of them permorming bad/breaking after this time? I am thinking about 3 cards and using them in about 70 degrees.That is a good question too actually. Another question of mine would be - will my flat be able to run lets say 6x4GPU rigs? If not, is there something I can do to allow such power usage? I see no problem in connecting cards to mobo etc, that is the easiest part ^^. And I think 280x are the way to go at this moment matey.