New computer.

[plutomaniac]

If I understood correctly you now have just a laptop so you basically need a new computer with all peripherals for 1740€. That means:

Computer (psu, cpu, gpu, ram, mobo, hdd/ssd, cpu fan, case, dvd rom)
Peripherals (monitor, mouse, keyboard, speakers/headphones)

Alright, it's fairly possible. It depends on what you intend to do with your computer (gaming, facebooking, video editing etc...). Tell me if the list of things above is what we are looking for (for example you may already have a keyboard or mouse) and what is your intended use. From there, I will start suggesting according to your needs.