I have used PC Trade on Aurora several times. They charge $35 an hour for repairs. The bench and repair area is visible from the customer area, these guys are fast and efficient.
If you want to upgrade your computer (RAM, internal hardware, etc), --take in your tower and buy the upgrade from PC Trade, they will install it, and check to be sure it works, for free.
I love this place. With the rate technology is advancing, their "used parts" are not old at all.
I have always walked out of there feeling like I got a fantastic deal. I am not a slouch, I can work on computers, but why bother to pull the case off when you can put it in the car, buy the RAM, whatever, from them, they install it right there...FREE.
You can't beat it. Give them a try!!