Build your own PC.
The hardest part is attaching the CPU to the motherboard without bending the fragile connections.
The rest clicks in like an airplane model.
Also use a real OS. Not something you found on the pirate bay.
I am a computer moron, and I built mine from scratch. 2 years later it still runs all my games at max.
And I am stupid, I know very little about computers in general. But managed to piece together my own rig that runs flawlessly.
Only help I recieved was attaching the CPU to the motherboard, but I was told you can buy them in combo sets. If your not as picky as I am about CPU types/MB combos.
This is a lesson. The nieve will always be victimized. It is the easiest way to make money for these people. When an hour of reading and asking questions could save you hundreds, and spare you the proprietary keyloggers/viruses.
Do your own research, and when possible, do it yourself, the time invested is worth the piece of mind.
(edit: I laugh at the folks who let so called computer experts use remote means to speed up your PC. Then wonder why they have dildos, and cigarettes on thier credit card bills.) Just too many cons taking advantage of computer luddites.
The stupid deserve it, but they should at least be warned once.