A few months ago, a customer left a Aspire 5315 laptop at work as the screen was broken. I managed to grab it, then another customer left a HP Laptop as the Motherboard was shot, well today i took the CPU from the HP and put it into the Aspire...now i have a pretty decent but basic carpc for free . As the LCD screen is cracked, i just use the AUX VGA output to my 24", eventually it will go to a 7" touchscreen in my car.
Acer Aspire 5315 originally had had an Intel 550 Celeron, then with a bios update, it could support quite a few different CPU's. The HP had a Intel T5250 Dual Core, sure a basic Dual Core, but better then a Celeron. So the Acer Aspire is now running 1.5gb Ram, a Intel T5250, and the 40gb Hard Drive from my PS3...i may either swap it for a SSD, or a mid size 2.5" Hard Drive (250-500gb).
Now i just need to figure out how to connect a touch pad via USB, which i may or may not do, but would be handy to have.