My computer had broken down, it wouldn't start due to overheating, the fan was ridiculously loud and non-functioning, and all I could get was the black screen of death. I took it in to the Computer Trade-In Post, and the man there was my saviour.
Warning: Don't come here looking for pretty interiors, and shiny displays of new product. The place was filled with parts and projects.
They searched for a replacement part for my fairly old clunker of a laptop. Gave me an estimate to buy the part (noone was manufacturing) and suggested I start looking for a new one. It wasn't until I asked about what I should be looking for, that they mentioned they sold laptops as well.
I walked away with a shiny new laptop and they even transferred all my data to it for free!
Conclusion: Fantastic customer service, really knowledgeable staff, totally worth a visit (just ignore all the computer graveyard around you).